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03 Hummer H2 PAC Onstar Bypass

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=75308
Printed Date: May 13, 2024 at 3:55 AM


Topic: 03 Hummer H2 PAC Onstar Bypass

Posted By: digitalas
Subject: 03 Hummer H2 PAC Onstar Bypass
Date Posted: March 29, 2006 at 12:11 PM

Hey guys,

We installed this onstar bypass and the radio will not faid from front to rear. Is this the bypass or is something wired wrong



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DigitalAS



Replies:

Posted By: digitalas
Date Posted: March 29, 2006 at 2:48 PM
guys any word on this issue

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DigitalAS



Posted By: jstruckman
Date Posted: March 29, 2006 at 3:31 PM
First off, it is not a OnStar bypass, it is an OnStar retention interface. The factory radio sends two channels of audio into the amp. The fading was done over the Class II bus. So if you pull the factory radio, then you cannot fade.



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Posted By: doibuy
Date Posted: March 29, 2006 at 5:22 PM
jstruckman is correct the Premium Bose amp found in Hummers, Escalades, and Denali's only use two channel inputs, but the lower Bose amps will still fade front to rear like the ones in the Tahoes, Silverados, Yukons, Suburbans. 




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