Remote start stereo turn on

Printed From: the12volt.com
Forum Name: Car Security and Convenience
Forum Discription: Car Alarms, Keyless Entries, Remote Starters, Immobilizer Bypasses, Sensors, Door Locks, Window Modules, Heated Mirrors, Heated Seats, etc.
URL: https://www.the12volt.com/installbay/forum_posts.asp?tid=19753
Printed Date: May 13, 2024 at 4:59 PM

Topic: Remote start stereo turn on

Posted By: thym8scallmet
Subject: Remote start stereo turn on
Date Posted: October 06, 2003 at 11:59 PM

I am installing a remote start with 3 accessory outputs. I want to know how to use one of these to acc points to turn on the stereo in the car. I think I know how to do this, but am not sure which wire I need to tap into, or if I need a relay to do it.

This is on a 96 chevy blazer.

Thanks for your assistance.

Replies:

Posted By: profuse007
Date Posted: October 07, 2003 at 1:28 AM

Posted By: floaterr
Date Posted: October 07, 2003 at 9:43 AM

What alarm are you installing? It might be possible you are thinking the wire will do one thing and it really doesn't (i.e. output when it's an input). we can give you exact wiring if we know the alarm.

If the output turns out to be a neg 3rd channel that can be "latched" then you connect it to a relay that connects "constant" to the "acc" wire.

Relay:
85 - Positive
86 - alm output (3rd ch latched)
87 - constant 12v
30 - "acc" wire
87a - no connection.

p.s. If there are amps then they might require more wiring. That being if their remote turn on lead was connected to "ign" instead of the remote lead or "acc". Try above 1st then if the amps don't work we can go from there.

Posted By: thym8scallmet
Date Posted: October 07, 2003 at 11:36 AM

it is an impact alarm basically the same as a delta pro 5005

Posted By: floaterr
Date Posted: October 07, 2003 at 12:24 PM

good to go. I couldn't find wiring diagram to give you the exact wires but it says the aux channels can be programmed to be latched. Thats all you need! :)

Good Luck

Posted By: thym8scallmet
Date Posted: October 07, 2003 at 11:54 PM

Thanks for the info, but I have one futher question.

In an earler post you gave me the following information which tells me that I am on the right track.

Relay:
85 - Positive
86 - alm output (3rd ch latched)
87 - constant 12v
30 - "acc" wire

Which acc wire do I need to connect to for the radio to turn on from the remote? Is it one of the wires comming out of the radio or is it one going into the ignition harnes. I am thinking that there should a wire going into the ignition harnes that will activate the radio.

Thanks again for your help.

Posted By: floaterr
Date Posted: October 08, 2003 at 7:48 AM

Ohhhh...

The "acc" wire under the column in the main ignition harness. The constant is there also.

Constant = red
acc = orange

they are both thick wires. Basically you'll be powering everything on the acc wire just like if you where to put the key in the ign and move it to the "acc" position. The only thing that is usally powered in this case anyway is the radio and the cig lighters. So your radar detector or CB might power up also.

Going straight to the radio is extra work that could do more harm then good. If you where to send power to the wire at the radio where it is a smaller gauage and fused and lets say you plugged something in high powered on the cig socket, the power will go through the smaller wire at the radio and back to the fuse box and to that plugged in iteam.

Posted By: thym8scallmet
Date Posted: October 08, 2003 at 12:40 PM

ok I have already connected Accessory 1 from the remote start to the Orange acc wire. that just turns on the blower for the A/C.

Looking at the wiring diagrams,

Accessory

Orange

Ignition Switch Harness (Heat/AC)

This is what I have done already.

Do you know which wire turns on the rest of the accessories, as if the key was in the acc position.

Posted By: floaterr
Date Posted: October 08, 2003 at 2:55 PM

Oh, humm..

Put the key in the ign adn turn it to "acc".

Probe the thick wires (pink,brown,etc..) the one that show 12v's or lights up your test light is the wire in question.

Good Luck...

p.s. Is this on a full size blazer of the S-10 one?

Posted By: floaterr
Date Posted: October 08, 2003 at 2:58 PM

Holly cow this has not been my week. I keep looking the wrong direction in these issues.

Your trying to get the radio to come on when you RS the truck or are you trying to hook the radio up to a 3rd channel to turn only the radio on?

Either way get some paper and do the following. Put the key to "acc" and find any/all wires that light up testlight. Next move the key to "ign" and find all wires that light up now (write them down). All the wires that light up the test light in these conditions need to have power during RS.

Posted By: Chris Luongo
Date Posted: October 08, 2003 at 9:52 PM

Why would you want the radio on during remote start? That's annoying. Plus, you park your car while your CD is on track 2, let's say. Now by the time your car is warmed up, the thing is all the way to track 7 and you have to go back.

But anyway,

pink and white let the engine run.
orange lets the climate controls and power windows work.
brown lets the radio and wipers work.

Wire up a relay as floterr describes, to power up the brown wire, and then the radio will work.

Posted By: thym8scallmet
Date Posted: October 09, 2003 at 9:24 AM

No Chris Luongo...

He does not want it to turn on during remote start, he wants it to turn on from the accessory wire. Thanks for the Info though, I think that it is just what I needed.

Posted By: italnpimp59
Date Posted: October 09, 2003 at 8:47 PM

so then if the 3rd channel is an accessory neg output, couldnt he just do this

85-constant 12v

86-output from 3rd channel

30-constant 12v

87-acc wire in the radio harness(red)

woudnt that turn the radio on when he activates the 3rd channel from the remote?

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Posted By: thym8scallmet
Date Posted: October 10, 2003 at 1:16 AM

that is a good question. That would make it very simple.

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