I'm getting the sunroof/headliner sound as well. Mine is on the driver's side, just above my head right where the corners of the moonroof and console and sunvisor all meet. It's a bit more prevalent when it gets colder outside.
I'm not sure I want any dealer to start taking apart the car just for that headliner -- it really does sound like a glue/adhesive issue. When I open the sunroof, I can see the bead of adhesive there.
Richard | GapBoyPCS
The odometer just keeps whizzin' by...