Aftermarket Stereo Hard Wiring, 2003 Pontiac Grand Am

Printed From: the12volt.com
Forum Name: Car Audio
Forum Discription: Car Stereos, Amplifiers, Crossovers, Processors, Speakers, Subwoofers, etc.
URL: https://www.the12volt.com/installbay/forum_posts.asp?tid=145646
Printed Date: May 02, 2025 at 6:49 AM

Topic: Aftermarket Stereo Hard Wiring, 2003 Pontiac Grand Am

Posted By: flailmaster
Subject: Aftermarket Stereo Hard Wiring, 2003 Pontiac Grand Am
Date Posted: September 23, 2019 at 6:04 PM

Canidate is a 2003 Pontiac Grand-Am GT {3.4L, Auto}. Was unable to locate verifyable info about hard wiring (without an interface/wiring harness adapter) for proper operation in ACC/RUN key positions. A color coded diagram of factory wires needed to complete this project would be much appreciated. Thank you!

SideNote; Loss of alarm / chime function /SW contols are of no concern in this situation

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eRok

Replies:

Posted By: flailmaster
Date Posted: September 23, 2019 at 6:07 PM

Additional Info; Regular ign. key (no chip). stock turn key ignition to start

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eRok

Posted By: i am an idiot
Date Posted: September 24, 2019 at 1:48 PM

There is not a switched power source in the radio harness. You will have to get switched power from the fusebox.

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