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Axxess Gmos-04 Bypass, 2003 GMC Envoy

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=144612
Printed Date: July 13, 2025 at 5:57 PM


Topic: Axxess Gmos-04 Bypass, 2003 GMC Envoy

Posted By: trevor overby
Subject: Axxess Gmos-04 Bypass, 2003 GMC Envoy
Date Posted: July 21, 2018 at 3:04 PM

Hey everyone i bought a GMC Envoy 2003 it had no radio in it but had the chime/onstar bypass harness sitting in the dash but im not sure how it wires up to my after market hu so i need help with the wire diagram for the Axxess Gmos-04 bypass thanks



Replies:

Posted By: i am an idiot
Date Posted: July 21, 2018 at 3:26 PM
The wires on that harness should be the same exact colors as your aftermarket radio. Red to Red, Yellow to Yellow. Black to Black.





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