Factory Amp Location in 04 Trailblazer?

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=34297
Printed Date: July 06, 2025 at 11:11 AM

Topic: Factory Amp Location in 04 Trailblazer?

Posted By: bradbower
Subject: Factory Amp Location in 04 Trailblazer?
Date Posted: June 21, 2004 at 11:54 AM

I Have a 2004 Chevy Trailblazer LT. I have installed replacement speakers, sub and all are hooked up with amps. The vehicle has Factory XM addition. And a factory HU. My problem is I've lost the headphone feature for the backseat and someone told me to find the factory amp and splice into the speaker wires there, not behind the HU. Where is the factory amp? I looked under the center console, not there. Any help would be great.

Thanks,

Chris

Replies:

Posted By: kgerry
Date Posted: June 21, 2004 at 11:55 AM

rear quater panel, drivers side near liftgate

-------------
Kevin Gerry
Certified Electronics Technician
MECP First Class Installer

Owner/Installer
Classic Car Audio
since 1979

Posted By: sparkie
Date Posted: June 21, 2004 at 3:41 PM

The amp is either in the driver's or passenger's rear quater behind the trim panels under the rear side windows. It depends on whether or not the truck is an extended version or not. I think that the ext. version has the amp on the driver's side.

-------------
sparky

Print Page | Close Window