2008 Pontiac Grand Prix Alarm/Stereo Wiring

Printed From: the12volt.com
Forum Name: Vehicle Wiring Information & File Requests
Forum Discription: Request Car Alarm, Car Stereo, Cruise Control, Remote Starter, Navigation, Mobile Video, and Other Vehicle Specific Wiring Info, Manuals, Tech Tips
URL: https://www.the12volt.com/installbay/forum_posts.asp?tid=113839
Printed Date: May 06, 2025 at 10:21 AM

Topic: 2008 Pontiac Grand Prix Alarm/Stereo Wiring

Posted By: dbinnc
Subject: 2008 Pontiac Grand Prix Alarm/Stereo Wiring
Date Posted: May 16, 2009 at 3:43 PM

Looking for radio and alarm wiring. Also, if you know the location of the XM unit.

Thanks,
D

Replies:

Posted By: dbinnc
Date Posted: May 16, 2009 at 3:44 PM

Also, No onStar and no monsoon and base model, not GXP.

Posted By: tommy...
Date Posted: May 17, 2009 at 9:17 AM

Battery	ORANGE	(+)	RADIO HARNESS
Accesory
Ground	BLACK/ WHITE	(-)	RADIO HARNESS
Power Antenna	VIOLET	(+)	RADIO HARNESS
Amp Turn On	VIOLET	(+)	RADIO HARNESS
LF Speaker (+)	TAN
LF Speaker (-)	GRAY
RF Speaker (+)	LIGHT GREEN
RF Speaker (-)	DARK GREEN
LR Speaker (+)	BROWN
LR Speaker (-)	YELLOW
RR Speaker (+)	DARK BLUE
RR Speaker (-)	LIGHT BLUE
Amp Location	LOCATED UNDER CENTER OF REAR DECK
Steering Cntrls	YES
Speed Cntrl	YES
Radio Security	YES

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M.E.C.P & First-Class
Go slow and drink lots of water...Procrastinators' Unite...Tomorrow!

Posted By: tommy...
Date Posted: May 17, 2009 at 9:18 AM

Battery	RED	(+)	AT VEHICLE FUSEBOX UNDER PASSENGER SIDE OF DASH
Ignition 1	PINK	(+)	IGNITION SWITCH HARNESS
Starter 1	YELLOW	(+)	IGNITION SWITCH HARNESS
All Door Trigger	GRAY/BLACK	(+)	AT BCM BEHIND DRIVERS SIDE OF DASH TO LEFT OF STEERING COLUMN
Domelight Super	GRAY/BLACK	(+)	AT BCM BEHIND DRIVERS SIDE OF DASH TO LEFT OF STEERING COLUMN
LF Latch	GRAY/BLACK	(-)	AT BCM BEHIND DRIVERS SIDE OF DASH TO LEFT OF STEERING COLUMN
RF Latch	BLACK/ WHITE	(-)	AT BCM BEHIND DRIVERS SIDE OF DASH TO LEFT OF STEERING COLUMN
LR Latch	LIGHT BLUE/BLACK	(-)	AT BCM BEHIND DRIVERS SIDE OF DASH TO LEFT OF STEERING COLUMN
RR Latch	LIGHT GREEN/ BLACK	(-)	AT BCM BEHIND DRIVERS SIDE OF DASH TO LEFT OF STEERING COLUMN
Trunk Trigger	RED / BLACK	(-)	AT BCM BEHIND DRIVERS SIDE OF DASH TO LEFT OF STEERING COLUMN
Alarm Disarm	VIOLET	(-)	AT BCM BEHIND DRIVERS SIDE OF DASH TO LEFT OF STEERING COLUMN
Alarm Arm	LIGHT GREEN	(-)	AT BCM BEHIND DRIVERS SIDE OF DASH TO LEFT OF STEERING COLUMN
Parking Lights	BROWN	(+)	AT VEHICLE FUSEBOX UNDER PASSENGER SIDE OF DASH

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M.E.C.P & First-Class
Go slow and drink lots of water...Procrastinators' Unite...Tomorrow!

Posted By: tommy...
Date Posted: May 17, 2009 at 9:19 AM

it only lists the GXP hope this helps...

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M.E.C.P & First-Class
Go slow and drink lots of water...Procrastinators' Unite...Tomorrow!

Posted By: dbinnc
Date Posted: May 17, 2009 at 9:29 AM

hmmm... i know there is no amp under the rear deck, I think that is for the monsoon system. I'm sure the previous years would be the same? 07 & 06, but then again, not 100% sure.

Posted By: tommy...
Date Posted: May 17, 2009 at 9:33 AM

just scrolled through the 07 w/ 3.8l standard audio...everything is the same minus amp related stuff

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M.E.C.P & First-Class
Go slow and drink lots of water...Procrastinators' Unite...Tomorrow!

Posted By: tommy...
Date Posted: May 17, 2009 at 9:34 AM

BTW that is for monsoon...Appears all colors and locations are the same

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M.E.C.P & First-Class
Go slow and drink lots of water...Procrastinators' Unite...Tomorrow!

Posted By: dbinnc
Date Posted: May 17, 2009 at 9:36 AM

THanks! doesn't mention the XM unit huh?

Posted By: tommy...
Date Posted: May 17, 2009 at 9:39 AM

here is something to start with
https://www.mp3car.com/vbulletin/attachments/hardware-development/48301d1203900600-pontiac-oem-xm-tuner-gpxm.jpg

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M.E.C.P & First-Class
Go slow and drink lots of water...Procrastinators' Unite...Tomorrow!

Posted By: dbinnc
Date Posted: May 17, 2009 at 2:52 PM

awesome thanks!

Posted By: tommy...
Date Posted: May 21, 2009 at 8:31 AM

Your welcome...

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M.E.C.P & First-Class
Go slow and drink lots of water...Procrastinators' Unite...Tomorrow!