Installation Procedure

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

Install the GPS antenna module (2) to the rear shelf trim panel.
Install the pushpins (1) in order to retain the antenna module to the rear shelf trim panel.
Push the center of the pin down in order to lock the pins (1) in place.
Install the GPS antenna wiring harness to the rear shelf trim panel in order to retain the wiring harness to the rear shelf trim panel.
Install the rear shelf trim panel. Refer to TRIM PANEL REPLACEMENT - REAR WINDOW SHELF .

Fig 1: Installing Pushpins & GPS Antenna Module
Courtesy of GENERAL MOTORS CORP.