Removal Procedure

WARNING: This page is about a different car, the 2002 Oldsmobile Intrigue. However, it is still accessible from the selected car via links, so may be relevant.

Remove the rear window trim panel. Refer to TRIM PANEL REPLACEMENT - REAR WINDOW SHELF
Remove the rear seat sound barrier. Refer to SOUND BARRIER REPLACEMENT - REAR SEAT BACK
Use the J 38778 in order to remove the audio amplifier push-in retainers.

Fig 1: Remove Rear Window Trim Panel, Rear Seat Sound Barrier & Audio Amplifier Push-In-Retainers
Courtesy of GENERAL MOTORS CORP.
Lift the audio amplifier from the rear shelf.
Disconnect the electrical connectors from the audio amplifier.
Remove the audio amplifier.

Fig 2: Remove Audio Amplifier & Electrical Connectors
Courtesy of GENERAL MOTORS CORP.