XM Power Feed in an O3 GMC Sierra
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=23448
Printed Date: May 01, 2025 at 6:22 PM
Topic: XM Power Feed in an O3 GMC Sierra
Posted By: fsr224
Subject: XM Power Feed in an O3 GMC Sierra
Date Posted: December 27, 2003 at 5:13 PM
Does anybody know where I can tap the Retained Acc Power (RAP) on an 03 GMC Sierra? I am adding XM radio with an FM Mod and would like it to stay on with the radio. I have been through the fuse box and the door fuse boxes but could not find a RAP feed, but I did find an ACC fuse though. Still, I like the factory stock function of the RAP.
Replies:
Posted By: auex
Date Posted: December 27, 2003 at 5:15 PM
You will probably have to wire your own. Everything that has RAP is now controlled by databus.
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Posted By: raydawg357
Date Posted: January 07, 2004 at 10:23 AM
Look in the relay section of this site and there is a diagram for this operation.
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Do it right the first time
Posted By: killerc
Date Posted: January 15, 2004 at 12:59 AM
ignition harness under steering column . harness is behind fuse block large brown wire ok
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it's a westbank thang
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