The XM Satellite Radio antenna is located on the roof or the rear of the vehicle. Keep the antenna clear of obstructions for clear radio reception.
Chevrolet Cobalt Service & Repair Manual. Door Handle
Exterior
Front
1.
Remove front door trim panel as outlined
in "Door Trim Panel."
2.
Remove front door water deflector.
3.
Remove three front door handle retaining
screws, Fig. 1.
...