The amp is located under the center console.
Behind the panel on the right hand side in the cargo area.
the amp is in the rear passenger door if you have a Bose system
Fold up ur back seats and open back cup holder and undo screws and the back comes off and the amp is under the center console
The Bose audio power amp, if that is what you are looking for is bolted to the floor directly underneath the center console, it is a huge pain to get to and even bigger pain to get a new one, been trying for three months
The fuse is located in the fuse box under the hood on the driver side. There will be a black box near the windshield with a black finger box. Remove the bolt and lift the lid. There will be a diagram of the fuse placement. Replace with a 20 amp fuse.
take it to the dealer
The factory stereo amp is located in the cargo area. It is behind the driver's side interior trim panel.
where is the factory amp in a 1998 gmc Yukon
check to make sure that the other speakers are not blown before you change the radio and bypass the amp.
under back seat
On a 2002 GMC Yukon XL, the factory amplifier is located inside the center console, beneath the cup holders. The cup holders can be detached by popping them out with a flat head screwdriver.
you may want to check for a loose ground or an open wire that keeps touching other wires or your frame..-Shocker