Removal Procedure

WARNING: This page is about a different car, the 2004 GMC Safari and 2004 Chevrolet Astro. However, it is still accessible from the selected car via links, so may be relevant.

Remove the instrument panel cluster trim plate. Refer to Trim Panel Replacement - Instrument Panel (I/P) Cluster in Instrument Panel, Gages, and Console.
Squeeze the clip fasteners on the sides of the radio and pull out.
Disconnect the electrical and the antenna connectors.
Remove the radio from the vehicle.

Fig 1: View Of Radio
Courtesy of GENERAL MOTORS CORP.