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How to bypass Avic-n2, works

Printed From: the12volt.com
Forum Name: Mobile Video, GPS, and Navigation
Forum Discription: Mobile Video Head Units, DVD Players, LCD and TFT Monitors, Navigation, GPS, PS2, PS3, XBox, etc.
URL: https://www.the12volt.com/installbay/forum_posts.asp?tid=60159
Printed Date: May 02, 2024 at 8:37 AM


Topic: How to bypass Avic-n2, works

Posted By: Craz1000
Subject: How to bypass Avic-n2, works
Date Posted: July 26, 2005 at 11:11 PM

the n2 reads the VSS wire and the brake wire at the same time PLUS it uses the GPS antenna to see if the car is moving. me and 2 other installers have used this method many times and it works.


this is how u set up the parking break (you need a relay)
86, and 30 go to a fused 12 volt source
87 goes to the AVIC brake wire
87a gets grounded
85 goes to your toggle switch (which grounds)

now the gps antenna, and vss wire (3 relays needed)
cut your antenna wire (should be 2 wires)
cut the vss wire

relay 1 & 2 (bypasses gps antenna)
86 gets fused 12 volts
87a goes to antenna wire (antenna side)
87 goes to antenna wire (AVIC side)
NOTE: each relay gets its own side of the antenna wire
85 goes to the same toggle switch AND 85 on relay 3
30 is not connected

relay 3 (bypasses vss)
86 gets fused 12 volts
87a goes to vss wire (car side)
87 goes to vss wire (avic side)
85 is connected from relays 1 and 2's 85
30 is not used



Replies:

Posted By: auex
Date Posted: July 26, 2005 at 11:25 PM
You do realize this is old news? By at least 2 months. Also why do you feel the need to make the streets less safe?

-------------
Certified Security Specialist
Always check info with a digital multimeter.
I promise to be good.
Tell Darwin I sent you.

I've been sick lately, sorry I won't be on much.




Posted By: oonikfraleyoo
Date Posted: July 27, 2005 at 12:40 AM
I was waiting for that.posted_image

-------------
Nik
Jeeputer Progress
[|||||||||||-] 90%
Check it out.




Posted By: Craz1000
Date Posted: July 28, 2005 at 1:33 AM
didnt know its been out for a while, plus its not like its any more dangerous with all the freakin old people changing lanes on the drop of the dime and cutting across like theres no tomorrow. i poseted it for people seeking the info for the same reason i am... to be able to use the unit as a cheap way to entertain my kids w/o havin to spend at least twice as much for the headrest screens (if they even make them for my car)

ooni... u were waiting for what exactly




Posted By: 12V_REP
Date Posted: July 28, 2005 at 8:49 AM
Why do people try and justify their lack of common sense by comparing their actions to other peoples? It is a sad testiment to our society on a whole when they do that.

Note: Please make sure that when you do this trustworthy procedure that you realize now you will have NO warranty. Just a little thought to keep in your head when you start cutting wires that are not meant to be cut on a $2000.00 retail priced unit.

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Posted By: danieljaluise
Date Posted: July 28, 2005 at 9:42 AM
First let me say that I have read all the arguments on this forum since the n1 first came out, and never posted because I think this is the most stupid topic ever. And with that…

Actually it doesn't void any warranty because when you send the unit in for service, you just send the brain and head unit anyway....

Why do people complain so much about how it's immoral to do this and it will cause deaths and blah blah... I have an N1 and play video for people if I'm going on a road trip... it shuts them up and keeps everyone happy.   

You must realize that people want the bypass done so that their passengers can watch video, not watch it themselves.   How the **** can you watch video and drive at the same time anyway?

I think this topic upsets people because not everyone can afford the best stereo in their car, and if they have it, they couldn’t do it themselves or find an installer that would bypass it for them.

When someone asks how to setup 4 12"s in their trunk, I don't see everyone jumping on that person and telling them it's hazardous to their hearing and it disturbs others. Damn jungle music. And if you have the system up, don’t even think that you’re gonna hear an emergency vehicle’s siren.

Bottom line is, even though it is a distraction in the car, it’s no worse than any other electronic device designed for cars.   Ever been in a new BMW with that Idrive bullshhh? Or seen some yuppie business suit in his benz surfing the internet on his Treo cell phone?   


-------------
-Avic-N1
-RF P4004
-PPI pcx-1250
-12" Treo Engineering SS
-fiberglass wheel well enclosure.
-12 disc changer
-remote starter
-RF Power 5.25" in doors
-Pioneer 4-way 6x9's




Posted By: oonikfraleyoo
Date Posted: July 28, 2005 at 10:53 AM
danieljaluise wrote:

Ever been in a new BMW with that Idrive bullshhh? Or seen some yuppie business suit in his benz surfing the internet on his Treo cell phone?     


12v_rep wrote:

Why do people try and justify their lack of common sense by comparing their actions to other peoples?


-------------
Nik
Jeeputer Progress
[|||||||||||-] 90%
Check it out.




Posted By: 12V_REP
Date Posted: July 28, 2005 at 4:11 PM
Pioneer Warranty


Daniel, I hate to call you wrong on the warranty statement, but you are wrong about the warranty statement. Please read the "What is not covered" section of the warranty card. And for those that are buying from these internet "bargain" sites, please notice the Unauthorized Distributor/Dealer statement under the "What is not covered" section. Bottom lines is if you butcher it you are SOL. And I am sure Homer can back me up on how strict Pioneer is about ALL accessories coming back with the brain and unit.

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Posted By: danieljaluise
Date Posted: July 28, 2005 at 9:37 PM
I see, I guess you are right then. sorry about the bad info.   I was going to send my unit back a little while ago, and I got on the phone with a rep from pioneer and asked them what had to come back. All she told me was the brain, headunit, and packing slip. She failed to mention about the accesories.   Leave it to a woman to get things wrong.   Yes, I am blamming my mistake on women.


-Dan

-------------
-Avic-N1
-RF P4004
-PPI pcx-1250
-12" Treo Engineering SS
-fiberglass wheel well enclosure.
-12 disc changer
-remote starter
-RF Power 5.25" in doors
-Pioneer 4-way 6x9's




Posted By: 12V_REP
Date Posted: July 28, 2005 at 9:44 PM
LOL!!! Where did you call, California or one of the zone offices?

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Posted By: soundzplus
Date Posted: July 28, 2005 at 10:27 PM

ok -- here's a new one

Try taking the Rear seat output and going into the Rear View Camera input - toggle switch the reverse wire to +12v and diode it so its doesnt feedinto the reverse lights ..

Anyone try it ...

Let me know



-------------
Soundz Plus, Inc
Complete Custom Car Audio
Warrenville, IL




Posted By: danieljaluise
Date Posted: July 28, 2005 at 10:54 PM
12V_REP wrote:

LOL!!! Where did you call, California or one of the zone offices?


It was their corporate office, the girl in charge of employee accomodations for best buy. Her name is Carinna or something. I didn't second guess her cause she sounded hot. 310-952-2000 call and see for yourself haha...




Posted By: auex
Date Posted: July 29, 2005 at 12:54 AM
I hope you aren't giving out numbers that aren't publicly available.

-------------
Certified Security Specialist
Always check info with a digital multimeter.
I promise to be good.
Tell Darwin I sent you.

I've been sick lately, sorry I won't be on much.




Posted By: Craz1000
Date Posted: July 30, 2005 at 1:00 AM
hmmm... that might work soundz... granted youll loose the rear output and the camera input but then who really cares if your not cutting anything and voiding any warrenties... better yet... you can get some splitters of your worried about taking up the outputs/inputs.... but shhh yea that might work actually... im gonna try it at work when i get a chance to pull out the display N2




Posted By: Craz1000
Date Posted: July 30, 2005 at 1:02 AM
daniel... BestBuy has employee accomidationis!!!!!!! no way... my store only has the alpine/kenwwod accomidations wtf man




Posted By: shizzlean
Date Posted: August 03, 2005 at 12:22 PM

Hello all there seems to be a new way to bypass n2 and d1. I read it on google groups. Do a search for avic-n2 bypass. Let us all know if it works. I'm not ready to void my warranty unless someone tells me its legit.

Shizzlean





Posted By: auex
Date Posted: August 03, 2005 at 8:01 PM
shizzlean wrote:

Hello all there seems to be a new way to bypass n2 and d1. I read it on google groups. Do a search for avic-n2 bypass. Let us all know if it works. I'm not ready to void my warranty unless someone tells me its legit.

Shizzlean




How about you try, ruin your unit, buy a new one, repeat and let us know how it works.

-------------
Certified Security Specialist
Always check info with a digital multimeter.
I promise to be good.
Tell Darwin I sent you.

I've been sick lately, sorry I won't be on much.




Posted By: metaverse
Date Posted: August 03, 2005 at 9:31 PM
"OK, we figured out the real way to bypass the lockouts on the new Pioneer nav systems. It is real simple, and does not require any complex switches or anything. This bypass will do two things:

1. Makes all nav functions available while driving (just like they
should be)
2. Make video playback available while driving

AVIC-N2: Underneath the unit is a small silver sticker, peel this
back. There are two contacts with the label "R197". Drop a bit of
solder between these to connect them.


AVIC-D1: Find an extra Pioneer wire harness, and pull one of the wires
out. In the AVIC-D1 harness, there is one open spot on the connector.
Put this wire into the open spot on the connector, connect it to
ground, then re-connect the plug to the AVIC-D1."



The instructions talk about solder bridging a resistor point on the N2 unit, and attaching a grounding point on the harness for a D1 unit.

The lockout is software triggered since it overrides settings on older avic units like the Avic 88 DVD which relied on brake grounding to display video, usually permanently overridden..

I was reading the google post earlier..just a matter of time before it propogates here..




Posted By: 12V_REP
Date Posted: August 04, 2005 at 2:36 PM
The info on the N2 is false. I personally deconstructed one today and there is no R197 and there is no silver sticker to be found.

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Posted By: shizzlean
Date Posted: August 04, 2005 at 11:27 PM
12v_rep did you look under the HU?




Posted By: 12V_REP
Date Posted: August 05, 2005 at 7:44 AM
No. We didn't have a headunit we could take out and open up. Plus it seemed more logical that it would be contained in the brain as that is where all the processing is done. I am getting ready to take my N2 out today to put my D1 in, so I will check that. I will also be able to confirm the D1 theory today as well.

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Posted By: shizzlean
Date Posted: August 05, 2005 at 9:21 PM

Hey 12v_rep,

I got confirmation that it works on the N2. Let us know if it works for you on both.





Posted By: Fastlearner
Date Posted: August 09, 2005 at 10:44 AM
Ok metaverse, we tried what you said on the d1 and couldn't get it. We grounded it and it didn't read the disc. Did you have to hook up any switches or just ground it and it works.




Posted By: tarheeltildeath
Date Posted: August 09, 2005 at 3:13 PM
Just installed N2 and have been following this forum anxiously awaiting confirmation of any bypasses that work.  12v_rep...anyluck in your efforts.




Posted By: 12V_REP
Date Posted: August 09, 2005 at 4:36 PM
I can't confirm this info, but I can say I like Velveeta Sheels and Cheese. Now, take that for what it is worth.

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Posted By: whtcrxghst
Date Posted: August 09, 2005 at 7:44 PM

Read the disk???  Are you trying to play movies in it?  It's not a DVD player so I would probably throw in the towel on that one if I were you.  Nav disks go in the bottom slot, CDs in the top.  You need to use a seperate DVD player (or playstation, etc.) and run it in through the A/V input.

Fastlearner wrote:

Ok metaverse, we tried what you said on the d1 and couldn't get it. We grounded it and it didn't read the disc. Did you have to hook up any switches or just ground it and it works.





Posted By: auex
Date Posted: August 09, 2005 at 7:55 PM
Fastlearner wrote:

Ok metaverse, we tried what you said on the d1 and couldn't get it. We grounded it and it didn't read the disc. Did you have to hook up any switches or just ground it and it works.


Please tell me you didn't think that this bypass, allegedly, would allow your nav to play dvds did you?

-------------
Certified Security Specialist
Always check info with a digital multimeter.
I promise to be good.
Tell Darwin I sent you.

I've been sick lately, sorry I won't be on much.




Posted By: SKYLANE
Date Posted: August 10, 2005 at 1:59 AM
Firstlearner...

With regards to the D1...

(1) Was there only one empty pin in the harness connector? That seemed to be what was implied in the instructions.

(2) Based on what auex said, what kind of disc were you trying to have it read? Was the D1 unit still operational after the mod? DVD-ROM still reading the Map disk?

(3) The main questions after making the new harness ground is this: Do you have all the nav functions available while driving? Can you play video from an external device hooked up to the auxiliary inputs?

As far as the N2, anybody have first hand experience with the mod with the resistor R197? Success?

I plan to try this mod with my D1. First I just want to make sure their is some sort of validity to the mods that were suggested.




Posted By: Fastlearner
Date Posted: August 10, 2005 at 2:32 AM
We tried it at our store display so we couldn't test the nav but there was only one empty pin so we took another wire and sure enough, nothing blew. Everything seemed to work fine. It just wouldn't play normal dvd. I heard though that if you burn a dvd it would play, haven't tested that yet.




Posted By: 12V_REP
Date Posted: August 10, 2005 at 7:28 AM
I am going to post this in both threads regarding this topic. Please keep in mind that the alledged bypass will void your warranty on the N2 if you try it. I am not confirming that it will work, but if you try it you have just voided your warranty. Pioneer is aware of this rumor and I am sure they will take steps to assure they are not taking returns that have been tampered with. Just food for thought.

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Posted By: SKYLANE
Date Posted: August 10, 2005 at 10:04 AM
Fastlearner

The DVD-ROM on D1 is for map DVD only, the N2 can play movie DVDs as well as read map DVD. Hopefully it was still able to play the map DVD? The D1 will not play a movie DVD, it is not designed for that. The only way to get video into D1 from an external source (such as DVD player) is through the AV inputs. Hopefully the mod will allow the video to input to play while car is moving as well as all the nav functions.

It looks like one confirmation that a soldered R197 mod worked on a N2, and it looks like the grounded pin mod appears to have worked on D1. I am going to do the mod to my D1 before the weekend and let you all know how it comes out.




Posted By: algutkin
Date Posted: August 10, 2005 at 11:14 PM

Do not do the dropping solder trick, you could short out and ruin the display unit.

I was dumb enough to try this dropping solder advice and now after finally  fixing my unit so that it will work again I am sitting here banging my head against the wall for even trying it. Stupid, Stupid, Stupid.

I am always looking for new tricks to try and the dropping solder trick sounded almost plausable. I uncovered the hole by removing the silver tape, sure enough the 197 pins were there. The only problem is that the pins are covered and surrounded with wax and the solder won't stick. I tried and tried, still no solder sticking to the pins. Finally I used an exacto knife and scraped away the wax, bango, the solder stuck, I did it. I then re-installed the display unit in the dash, the unit powered up, the screen opened, then, immediately  powered off and shut down in the open position. OH heck, did I just ruin an expensive unit? I removed the unit, carefully removed the solder drip, and re-installed the unit,  It still did not work. Now, I'm scared, angry, and feeling really stupid, why did I mess with this? Especially when I had the darn thing bypassed and working the old fashioned way. Anyhow, I removed the display unit again, got out a magnifine glass and used the exacto knife to carfully scrape off all solder and made sure that the pins were clean and isolated from the surrounding metal. If you scrape around the pins you will see that the pins are isolated from touching metal,  but they appear to be part of a metal board. The pins cannot touch the metal board under the wax. I was lucky, the second cleaning and scraping worked, the unit now works again.

Lesson to be learned, if you get information first hand from someone inside Pioneer, maybe you can half believe it. However, that person better be a Pioneer engineer or you take the chance of permanently screwing up a perfectly good unit.  I came close to frying my unit, and believe me, I have plenty of experience soldering and installing aircraft radios. This dripping solder trick may be a scam, it's not worth the chance. If you reason it out, the better way would be to take off the display unit cover and solder wires to points that you can clearly see. 

I did try this backup  camera bypass trick and it does work. The basics are as follows:

Ground the  wire coming from the display unit harness that goes to the emergency brake.

Hook the backup light wire from the hideaway unit to a two pole on/off toggle switch, the other end of the toggle switch goes to 12 volts, yellow. Same yellow wire that the hideaway gets it power from.

Run a RCA video wire from the hideaway "video out"  to  the hideaway unit "back up camera in".

Want to watch video while moving? switch the toggle to on, the backup wire will be connected to 12 volts and will fool the unit into thinking that you are backing up, it will turn on the camera port which is attached to video out. Video out usually goes to a rear video screen and it is always on. The RCA wire just redirects the output back to the backup camera in port.

Don't forget to change the unit setup screen, you need to tell the unit  that you have a camera attached or it won't work.  

Warning: In some states this is illegal, do it at your own risk. I am merely passing on what I read many months ago. If you screw things up, ruin your radio, get arrested, get into an accident, you are the one responsible.





Posted By: Velocity Motors
Date Posted: August 10, 2005 at 11:29 PM
Thanks for the post algutkin. In the end it's up to the member to use common sense and sort through what is reliable information and what is not. Posting your experience is what this forum needs concerning the modification of the newer D1 and N2's.

-------------
Jeff
Velocity Custom Home Theater
Mobile Audio/Video Specialist
Morden, Manitoba CANADA




Posted By: whtcrxghst
Date Posted: August 11, 2005 at 2:44 AM

Not to encourage anyone to try it because apparently there is some risk involved, but I had never even used a soldering tool and I just did exactly as the previous post stated.  Worked flawlessly for me and my N2.  Seems almost too easy





Posted By: algutkin
Date Posted: August 11, 2005 at 9:09 AM

Follow up to the stupid dripping solder bypass:

Every time you remove the display unit you have to reset the stations and custom settings. What a pain in the butt.

Every time you remove the display unit you take the chance of loosing those four tiny screws that hold the unit in the dash sleeve.

Every time you remove the display unit you mess up the wire harness, you know, the one  that you so carefully tied up and installed to avoid dash noises and wire squeeks.

Every time you  remove the display unit you put wear on the plastic bezel that you have to remove to get at the small screws. If you remove it enough times the molding will not clip on right and will fall off every time the unit opens.

Dripping solder is not one of those technical tricks that is taught in electronic school. Dripping solder is just like asking your project to short out and fry itselt.

Did you ever think that this idea might have come from the Pioneer sabatage team?

Just food for thought





Posted By: 12V_REP
Date Posted: August 12, 2005 at 7:50 AM
 People are going to try this no matter what and I am sure there will be people who will ruin their unit. I have had several dealers call me and question this method and all I can tell them is if you try it, don't call me for an R.A..

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Posted By: what3ver
Date Posted: August 12, 2005 at 7:29 PM
Well, I was nervous as hell when I tried it, but it works, on the D1 anyway.  I haven't tried hooking up a video source to see if that works or not, but all NAV functions are editable while driving.  I'll hook up a DVD player to it this weekend and see if it works and will post back.  Thanks to whomever originally posted this!!!




Posted By: SKYLANE
Date Posted: August 12, 2005 at 7:57 PM
Well, I did the mod to D1, it works! I did more than the last fellow in testing: I hooked up the external DVD to test the video input while moving over the AV. Works just fine.

There was only one empty pin in the harness. Filled it and grounded it. Remember, you need to have the parking brake switch grounded also for it to work...




Posted By: algutkin
Date Posted: August 16, 2005 at 4:48 PM

TO GET THIS CURRENT:

There probably isn't a Pioneer sabatage team, the thought was just a thought to be humerous, however, Direct TV does have such a team, they even brag about it.

To be creative, I propose an alternative to dripping solder in order to connect the 197 pins. If these pins are used as a real bypass,  then Pioneer must have a plug that goes into that slot in order to jump the pins together. In addition, the plug must fit flush with the case, or the radio will not slide back in the sleeve. I tried a  normal computer jumper to accomplish this,  however,  it will not fit, it is too wide. Lets think about safe alternatives.

Anyone want to try a spring? Yes a small spring, just wide enough to contact both pins, wrap the top of the spring in black electrical tape so it won't gound out to case by touching the edges of the access hole.. Keep the spring in place with a piece of tape, similar to the original silver tape that covered the access hole, that way there won't be a bulge and the radio will slide back in the sleeve. 

I just ordered a new radio for testing, and will try the spring deal before the end of the week. Anyone want to try this first, please report your progress.

NO, I'm not a member of the Pioneer sabatage team, just a circut testor.





Posted By: auex
Date Posted: August 16, 2005 at 4:51 PM
algutkin wrote:

There probably isn't a Pioneer sagbatage team, the thought was just a thought to be humerous, however,


You just go ahead and think that, that is what they want you to think.

-------------
Certified Security Specialist
Always check info with a digital multimeter.
I promise to be good.
Tell Darwin I sent you.

I've been sick lately, sorry I won't be on much.




Posted By: ASD AXELA
Date Posted: August 16, 2005 at 8:44 PM

This did not work for me i have the Avic N1 with N2 soft upgrade

as you know i got the instructions for the bypass
but i have Avic N1 with N2 soft i took the unit out and there is no silver stiker under my unit so i opend the hole thing up looking for that (R197) pin cant find it so if you can please help my bypass this unit  Email me @ bestsoft_ca@hotmail.com i just want to open NAVI dont care about video

The Real AVIC Bypass

Disclaimer: You purchased the information, not the results of the information, if you are not comfortable with electronics then do not continue, there are no refunds and I am not responsible with what you do with this information

Background: What people do not know is that the AVIC-N2/D1 is the same in every country, although in every country other then the US you can watch DVD’s and use all of your Navigation features. A question my electronics shop asked ourselves was, if the hardware is the same, the software is the same they what is the AVIC missing to keep you from being able to use all of its features. Other bypass’s make you use 3-6 switches and relays and opening up the brain to the unit or cutting the GPS wire.

Solution: All that’s needed is one wire….The difference between all the units in the other country is they have a wire connecting two different processors and this is how you do it.

AVIC- N2: On the Dash unit not the Brain underneath the unit is a small silver sticker, peel this back. There are two contacts with the label "R197" or label "F197" there should be two soldier points loop a wire between those two points AND DONE!!!! Everything bypassed, THE REAL WAY TO DO IT.

AVIC-D1: Find an extra Pioneer wire harness, and pull one of the wires out.  Or, if you do not use the A.ANT lead, pull that out of the harness.  In the AVIC-D1 harness, there is one open spot on the connector (next to the ground wire). Put the wire into the open spot on the connector, connect the other side to ground, then re-connect the plug to the AVIC-D1. Also, you must ground the Parking Brake wire (or connect to a toggle switch if you feel the need).

Before you continue please read:

Your warranty will be voided unless you keep this mod very clean so you can undo it and they will never even notice that you did it, our Pioneer rep actually is the person who filled me in on this information. Also, Use 26 Gauge (or something close) and this is very important: DO NOT DROP SOLDIER, if you look carefully, there are traces around these two points that absolutely cannot be contacted. It was hard for me to do because these points were so small and that the wire was so thin. It is best to use a soldering iron that has a super fine tip and heats up better then most…if you feel uncomfortable with this process then take it to a electronics or computer repair shop and they could do it for you in 5 minutes and for around $5 bucks….be very careful, b/c if you touch these traces I do not know what will happen or want to know what will happen...this is like most mods, it’s a very simple mod (the easiest type you can find) although like anything a lot is at stake and could go wrong, please, if you do not feel comfortable doing this then DON’T, spending an extra $5 is worth it to get it done right…





Posted By: shizzlean
Date Posted: August 17, 2005 at 10:51 PM

Hi,

Does anyone have a good digital camera who can photograph the r197 points under the sticker? Can someone also photograph where the sticker lies on the HU? It might help us all visualize it, if we choose to do it.





Posted By: algutkin
Date Posted: August 18, 2005 at 12:08 AM

I just got my new Avic N2 for testing the 197 pin jumper. IT WORKS !

To expand upon the other posts and also to add comments to my previous warnings about dripping solder. Here is the poop.

The silver sticker is located on the underside of the display unit. It is about 3/4 inch long and  1/2 wide. This silver sticer covers an access hole 1/2 inch long, 1/4 inch wide. The sticker comes off with a single sided blade. When the hole is exposed you will see a tiny R197 and below it two silver pins. The pins do not stick up very far and are not easy to solder wires onto.

Here is what the problems are.

The 197 pins are actually isolated in a metal box or circuit board, which is painted so that it will not conduct electricity. The pins are surrounded by wax to insulate them from the box or circuit board. If you touch the pins too long with a solder iron you will melt the wax and ruin the possibility of soldering anything to the pins. If you solder sloppy you will short out the pins to the box, and the radio will stop working. In order to fix the  sloppy soldering and make the radio work, you have to scrape all around the pins with an exacto knife to make sure that no solder remains between the pins and the surrounding metal plate or circuit board.. The radio will work after you remove the excess solder, however, your bypass plans will be ruined, the pins will melt and will also be covered with wax. I learned a lesson with this one. However, I just received a new unit for my motorhome and decided to try again, but decided not to use solder. Here is what I did to make it work without solder.

I found a tiny screw with a  flat head. The screw was about as wide as the screws that hold the display unit in the dash sleeve, but much longer. I cut the screw down with a pair of  diag. plyers and stuck the flat part to a piece of clear packing tape. I then took the tape and covered the hole, with the long end of the screw inside the hole, making sure the screw touched both 197 pins. Since the tape is clear you can make sure you got the screw to touch both pins. You have to make sure that the tape lays flat and that the screw is cut to the perfect length, otherwise the bulge in the tape will not allows the radio to slide back into the sleeve.

I did this tonight and whammo, the bypass worked, I watched TV while driving around the neighboring streets, also tried a DVD video. Just to expand the test, I also tried the navigation and everything was unlocked while driving.  So, I have to take back my warnings, this bypass method works perfectly and doesn't effect the navigation gyro or accuracy of the GPS.

The tiny screw deal was just a quick and dirty method of trying the bypass, I'm sure with experimentation we can find other ways of jumping those pins together without dropping solder or taping screws to packing tape. In the next few days I'm going to experiment with making some kind of silicone plug with a piece of wire sticking out in order to jump the two pins together. (did I spell silicone right?) That way I can just  put the plug into the hole and tape over it.

Anyhow, newbie post or whatever, jumping the R197 pins does work, it is really the best and most simple method, it doesn't need relays and switches to work, however, the brake wire still has to be grounded.

Now I can sleep and dream about silicone plugs and jumper wires.





Posted By: algutkin
Date Posted: August 19, 2005 at 1:05 PM

This is an update to my own previous posting.

This is a summary and my opinion of the bypass solutions:

The various switch installations These methods work, but involve intalling variations of additional relays or toggle switches. These methods enable the watching of DVDs while in motion, howver, in some variations, the video is patched through the backup camera port. A disclaimer appears on the screen and entering navigation data while moving is questionable.

The dripping solder method using the R197 pins covered by silver tape on the bottom side of the display unit:

This method is the absolute best method, it really does open up the use of the unit without restriction or disclaimers on the screen. The dowside is your ability to solder a jumper between two tiny pins that can only be accessed through a factory access hole in the bottom of the unit. The pins are surrounded by wax which will melt when hot. If the wax melts too much, the pins will be covered and you will not be able to solder. I know, I tried it the first time and failed.

Using some other device to jump the 197 pins:

After the first failure at soldering, I got a new radio and tried using a less permanent method, a screw attached to packing tape. I attached it to tape so that it would be held in place in the access hole and would not fall inside the radio. This method worked, but, I scrapped the idea because it was too much trouble and the screw could come loose. I decided to re-visit the solder method, and devise a better way than dripping the molten solder.

The latest new and improved 197 solder method which almost anyone can do:

1. Uncover the access hole by removing the silver tape on the underside of the display unit. You will see R197 printed over two tiny pins.

2. Put some rubbing alcohol on a small piece of paper towel, wrap it around a small screw driver, and clean the 197 pins so excess wax will be removed.

3. Cut a small piece of sanding paper and using the screw driver rub it over the pins so the solder will have a better chance of sticking.

4. Take some thin electrical wire, must be a size smaller than number 18, strip the insulation back 1/16 inch, and prepare the stripped end by adding solder.

5. Use a soldering iron that has a pointed end. I ground mine down on a grinder to make sure it would easily fit into the access hole and still enable me to see.

6. Holding the wire in your left hand, place the soldered end between the two 197 pins, insert the soldering iron and carefully heat the end of the wire like you are soldering it to the pins. Three things will happen. You will solder the wire to the pins, which is fine. Some solder will drip off and short the pins, which is fine. Or, you will fail, nothing will be harmed if you don't melt the wax. Very little solder is needed. If the wire sticks to the pins, fine, clip the wire off and make sure no bare ends touch the case.

I took my time using method six, the unit now allows unrestricted use.

In all cases I grounded the emergency brake wire, don't know if I had to, but, did it anyway.

You may be violating state law by messing with the radio and watching DVDs while driving. Do this at your own risk.

If you don't know how to solder, or fail at jumping the 197 pins, and you screw  up your radio, welcome to the club. That is what testing is all about. If you don't want to take the chance, don't touch the radio. Enjoy it in the stock configuration. This is my last post...until somone figures out something better. My other two Avics are now modified, mission accomplished. I can now watch music videos while stuck in CA traffic, rolling along at ten miles per hour.






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