Removal Procedure

WARNING: This page is about a different car, the 2003 Pontiac Aztek and 2003 Buick Rendezvous. However, it is still accessible from the selected car via links, so may be relevant.

Remove the left instrument panel (IP) insulator, Refer to CLOSEOUT/INSULATOR PANEL REPLACEMENT -- LEFT .
Push in the retaining tab to release the amplifier.
Slide the amplifier out of the bracket.
Disconnect the electrical connectors.
Remove the amplifier from the vehicle.

Fig 1: Disconnecting Electrical Connectors
Courtesy of GENERAL MOTORS CORP.