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Stereo Wiring Diagram, 07 Pontiac G5

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=90454
Printed Date: May 11, 2025 at 6:58 AM


Topic: Stereo Wiring Diagram, 07 Pontiac G5

Posted By: amarce
Subject: Stereo Wiring Diagram, 07 Pontiac G5
Date Posted: February 14, 2007 at 1:59 AM

I've searched the net for hours on end, and I can't seem to find a wiring harness diagram for an '07 G5 GT 6 disc changer with the included 10" subwoofer and 6 speakers. I'm trying to wire in an RCA converter to install an additional amplifier and 2 12" subwoofers, but I've encountered many problems. I've isolated the left and right rear speakers, ignition wire, ground wire, and power wire, but I'm having trouble figuring the polarity of the speaker wires without a tester. Any help would be greatly appreciated.




Replies:

Posted By: lowtech817
Date Posted: March 08, 2007 at 2:48 AM

Usually in the G5's and cobalts they'll be a wire harness in a black cover running from the woofer to the amp on the back which will be the Sub leads (white(+) black (-)) if you have a problem with that just goto the rear speakers and all GM's the + polarity is the darker colour (IN THE REAR ONLY) good luck

wiring colours:

Radio 12v
posted_image		 RED / white
posted_image		 +
posted_image		 radio harness
posted_image		  
posted_image
Radio Ground BLACK/ white  -  radio harness   
Radio Ignition (GMLAN Serial Data)       
Radio Illumination (GMLAN Serial Data)       
Factory Amp Turn-on same as power antenna wire       
Power Antenna pink  +  radio harness   
LF Speaker +/- tan - gray  +,- radio harn or amp in pass side trunk  
RF Speaker +/- lt. green - dk. green  +,- radio harn or amp in pass side trunk  
LR Speaker +/- brown - yellow  +,- radio harn or amp in pass side trunk  
RR Speaker +/- dk. blue - lt. blue  +,- radio harn or amp in pass





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