amp wiring diagram...

[97stscaddy]

02 LS, Alpine system. Dont know if that makes any difference or not.
Does anyone have a wiring diagram for the factory amp on the rear deck speakers?
Id like to put a better set of subs in there, and hook up an aftermarket amp with a little more oomph to it, if I can.

That is the amp for the rear speakers under the rear deck isnt it? The one between the speakers? I would imagine that it is since they appear to be plugged into it.

 

[Quik LS]

The large 20-pin connector:
Position 5 and 6 = right rear (- white and + gray)
Position 12 and 13 = left rear (- whit/violet and + gray/white)
Position 7 and 8 = right front (- white/red and + gray/red)
Position 14 and 15 = left front (- white/black and + gray/black)

Constant power = position 9 (orange.black)
Switched hot in start = position 3 (gray/orange)
Switched hot in run or ACC = position 10 (yellow/green)
Ground = position 16 (black/green)

The 16-pin connector contains the connections to the steering wheel controls and various data bus signals. The cassette systems with external CD changer have a connector dedicated to the signal cable for the changer.

On audiophile systems, there is an 8-pin connector wired as follows:
position 1 = sub + line level signal (gray/red)
position 2 = sub - line level signal (white/red)
position 3 = shield for sub amp signal
position 4 = +12 remote power to sub amp (yellow/red)
position 5 = center channel - line level signal (gray)
position 6 = center channel + line level signal (white)
position 7 = shield for center channel signal
position 8 = +12 remote power to center channel amp (yellow)

The trunk connector (on the drivers side) is number C465 and the sub audio uses these pins:
1 = yellow/red: switched hot
3 = shield for low level audio signal
5 = red: constant power from battery junction box fuse F418 (20 amps)
7 = white/red: low level LEFT audio signal
8 = grey/red: low level RIGHT audio signal


The rear amp is a 85watt

 

[97stscaddy]

7 = white/red: low level LEFT audio signal
8 = grey/red: low level RIGHT audio signal

These are positive leads correct? Are the negatives in that harness too? Or do I not need them?

 

[Quik LS]

3 = negative for the audio signals.

 

[97stscaddy]

Got ya. Thanks Quik.