WARNING: This page is about a different car, the 2002 Oldsmobile Bravada, 2002 GMC Envoy XL, 2002 GMC Envoy, and 2002 Chevrolet TrailBlazer. However, it is still accessible from the selected car via links, so may be relevant.
Lower the headliner. Refer to
Remove the 4 screws securing the console retainer to the Z clips.
Remove the roof retainer from the vehicle.
If replacing the roof retainer, remove the Z clips from the roof panel.