A tree hit my sliding/tilting sunroof and repair was made by local body shop. They really had no clue and fumbled their way thru the fix. Somehow they managed to get everything back together except that now the tilting function doesn't work. When I take out the headliner, it works fine -- slides and tilts. But when I reinstall the headliner (done about 15 times), the tilt doesn't work. Any ideas out there on what's happening?