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2003 GMC Sierra Bose system question

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=21020
Printed Date: May 09, 2025 at 9:23 PM


Topic: 2003 GMC Sierra Bose system question

Posted By: scotteac
Subject: 2003 GMC Sierra Bose system question
Date Posted: November 04, 2003 at 9:51 PM

I've got a 2003 GMC Sierra with the factory Bose system with the steering wheel controls and XM radio.  I'm trying to hook up a sub amp but the wires on the back of the radio are completely different from all other GM vehicles.  I've read that there is a seperate unit from the radio that has the speaker output wiring if so does anyone know where it is?  Thanks!



Replies:

Posted By: ICKSTER40
Date Posted: November 07, 2003 at 8:15 PM
try lokking behind the glovebox or it'll be in the center console

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DJ,Scottsdale Extreme Sound



Posted By: Boom!
Date Posted: November 09, 2003 at 4:19 PM

There is a seperate box for the speaker outputs, and it is either under the dash, to the right of the steering columb, or its behind the glovebox!!

Good Luck



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MECP Certified Installer
88 S10.....162.8 Db



Posted By: Justaguy
Date Posted: November 10, 2003 at 12:15 AM
The factory amp is in the center consule, down low.

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