00 sentra stereo ?’s

i want to put some subs in a 00' sentra with out changeing the radio..its the 7 speakers system..7th is a sub.tiny it is.

There is a plug going into the sub..which wire is the left and right rca and turn on?

OR

is there a plug that has these wires figured out and ill i have to do is unplug,plug the new one in, and hook everything up?

thanks in advace.

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All you need is one positive and one negative high-level speaker wire to tap in to, and you can always get the +12 volt connection from up at the head unit if necessary.  Best bet would be to grab a DMM and test speaker to determine the proper wires.

To answer your question though, I've never heard of any such plug that will let you do all the connections plug and play--at least not when you're talking about the sub amp's plug.

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Ethan
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i dont have the car right now..but when i get it ill take apic of the plug that goes into the sub..

The sub must have an amp to power it...i want to know which of the many wires that are in the plug that goes into it, i can use to turn on and the rca-or line in.

you have a link that decodes the colors? or something.

about the plug, that was a hopeful question to make it easy on me.lol

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yea I meant to ask you if the amp was mounted directly onto the sub itself, or if the amp was elsewhere in the vehicle.  Because if the amp is elsewhere in the car, you should be able to get to the positive and negative speaker terminals on the sub itself, and right there you got two of your 3 wires already figured out right away.

As for the amp plug, I'll wait and see what the pic looks like, but probably it will be quicker for you to just test for the 12 volt switched wire yourself.  I'll take a look though and see if I can help at all.

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Ethan
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"Patience, persistence, and perspiration make an unbeatable combination for success"
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well i cant see to find an amp near it.....ya know what it would look like? 

i thought about that line off a speaker...get a line converter...cheap one.  if i cant find a decent way to do it.  since that stock sub is very low power..if i crank it with the other subs..i would be afriad of blowin it.  

now if it has an amp...there should be a turn on right..that when the radio goes on the sub is on...but this "plug" has like 8 or so wires-guessimate. so if ne knows where there is a nissan wiring code, that would rock.

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i emailed nissan....but i dont think they'll help me ne at all.....heck MB quart still hasnt emailed me back about them subs...specs for volume and power...

ne one got a 00' sentra?

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Mom is due home tonight with car...if i can get a good pic of it ill do it...if not its gonna be tomarrow.

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thats the best i can get....sry i have a pos digi cam...close ups arent really an option.

btw there are 6 wires goin into the plug..

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ok i decided just to do the line out converter... my one last question is.. how do i do the turn on wire?

so when i turn the stereo on the amp turns on?  do i have to set up a switch?

please reply

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Sorry I missed your earlier post with the pic of the harness, I've been working a lot the last couple days.  Anyways, that plug looks like a standard nissan stereo plug.  Was this up at the back of the head unit?  Or wast it that were you able to locate the factory amplifier and the plug in that picture is the one that was plugged into the amp?

For the turn-on, you can either test the wires of the amp's harness with a multimeter to find the proper switched wire, or you can get the turn-on from the same wire that turns on the factory head unit. 

Take a look at this diagram and your radio should have the same type of plugs on the back of it.  The one you need for the aftermarket sub amp's turn-on connection is pin D  ("Acc"), and it's in the "P501 connectors".  Left to right there are 4 total plugs with a pinout charge in that image, and the pin D that you want is on the 2nd plug if you start from the left.

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Ethan
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"Patience, persistence, and perspiration make an unbeatable combination for success"
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the plug is from the sub...plugs into the amp which is underneath the sub...

i have a multimeter, though i have no clue what to test for....

also i see on the P501 plugs- the first one- has a rear amp turn on pin k?so does that mean that i can find that one color and spice into it and use that and a turn on? I found a harness connector- i moved. because i origianlly wanted to put a new source in...  that pin k is color blue/white...

im really thick...sry..

what im getting for the most part is to test the plug with a multimeter-which i have- but for what....whats that Acc. pin gonna do for me?

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oohhh ok i see what u mean about the acc wire....i saw it in another post.. k i got that..

just use that and get a line out converter for the RCA's? or you know what wires are the left and right rca lines.

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The line out converter needs to get as its input a signal that is already amplified.  If the entire system is amplified outside of the main source unit as seems to be the case, then the line out converter will have to get its input from somewhere other than at the back of the source unit.  The only problem is that most line out converters have two sets of high level inputs--a positive and negative for the left channel, and a positive and negative for the right channel.  It converts these to a low level RCA type connection, and each channel gets a separate RCA plug.

I initially told you to locate the speaker terminals directly on the factory sub and to tap in to those, but then i realized that that will only give you one channel of sound.  So only one rca plug would be getting a signal after it comes out of the converter.  Since it's a mono signal anyways, I'd recommend getting a y-cable to split this into two RCA plugs, because most sub amps are going to require a 2-channel input (2 RCA plugs).

If the speaker terminals on the factory subwoofer are not labeled positive and negative, you'll need to use your multimeter to verify the correct polarity.  Set the meter to test for dc voltage, then with the system turned on, touch the red test lead to one of the speaker terminals and the black test lead to the other speaker terminal.  If the reading you get is a positive reading, then that means the terminal touching the red test lead is the positive terminal.  If you get negative voltage, that means the terminal touching the black test lead is the positive speaker terminal.

You should verify the switched turn on wire as well just for safety.  There should be a switched wire present both at the amp's input harness, and at the radio's input harness (because both components need a turn-on signal just like your amp needs one).  The plug you choose to use is up to you.

You'll be testing for DC voltage, around 10-13v, but it should only show voltage when the stereo is turned on.  The voltage should go down to zero once the car is off and the key is removed from the ignition.  Keep in mind that in both harnesses there will be a factory wire that will show power going to it when the car is on and also when it's off; just make sure you don't mistake that wire for the switched wire.  If you accidentally hook up to the constant wire, your amp will stay turned on even when the car is off, and eventually it will run down your battery.

Here's a pic of how the signal wiring should be done:

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Ethan
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"Patience, persistence, and perspiration make an unbeatable combination for success"
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no picture..

cant i hook the line out converter to the rear speakers? i only have one amp-one pair of rca's,right?

"The only problem is that most line out converters have two sets of high level inputs--a positive and negative for the left channel, and a positive and negative for the right channel.  It converts these to a low level RCA type connection, and each channel gets a separate RCA plug."

thats what i want....just a pair or RCA's...thats the easy way..which i want to do...

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