2004 Chev Silverado Wiring

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=45445
Printed Date: May 10, 2025 at 9:30 AM

Topic: 2004 Chev Silverado Wiring

Posted By: fcspag
Subject: 2004 Chev Silverado Wiring
Date Posted: December 17, 2004 at 6:38 PM

I installed a XM Skyfi in my truck. I want the Skyfi to remain on after the truck is turned off, just like the radio, until the door is opened. Where do I hook up the hot wire for the Skyfi to make this happen? I tried a couple wires on the radio but can't find the right one.

Thanks

Replies:

Posted By: kklagge
Date Posted: December 17, 2004 at 7:05 PM

I have a 2001 Silverado and am using an Alpine HU w/sirius and mine still stays on. I just used the factory wiring harness and the red (ignition wire) on the HU connects to an ACC wire from the factory harness (can't remember if that was a red wire or not).

Posted By: fcspag
Date Posted: December 17, 2004 at 8:13 PM

I tried two orange wires. One was constant hot and when I connected to the other(smaller) orange wire all kinds of bad things happened. The truck wouldn't start, the lights and windows didn't work, etc. Something to do with the theft deterrent system.

Posted By: auex
Date Posted: December 17, 2004 at 8:20 PM

Do a search for "RAP" or "retained accessory power".

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Posted By: tech460
Date Posted: December 19, 2004 at 2:50 PM

The radio is controlled by the BCM of the vehicle on 03' and newer GM trucks. Because of this you will not be able to use aftermarket products with the RAP feature.

Posted By: fcspag
Date Posted: December 23, 2004 at 2:03 PM

Thanks tech

Posted By: tech460
Date Posted: December 23, 2004 at 2:25 PM

Your welcome.

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