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 trim panel. Refer to TRIM PANEL REPLACEMENT -- REAR QUARTER LOWER (AZTEK) or TRIM PANEL REPLACEMENT -- REAR QUARTER LOWER (RENDEZVOUS) .
Disconnect the electrical connector.
Remove the screws which retain the rear cargo audio control.

Fig 1: Disconnecting Electrical Connector
Courtesy of GENERAL MOTORS CORP.
Remove the rear cargo audio control from the trim panel.

Fig 2: Removing Rear Cargo Audio Control From Trim Panel
Courtesy of GENERAL MOTORS CORP.