I have a 2005 Suburban LT 1500 2WD with a sunroof problem. There's a bracket that spans the back of the two tracks of the track assembly that has managed to become dislodged. I've got rattles driving me insane when the roof is closed and I'm afraid to open the roof more than to vent for fear it will get stuck on the loose bracket. Also, the driver's side of the sunroof is now not seating fully even after adjusting the glass as high as it will go and leaks during heavy rain. Does anyone have a schematic of the sunroof assembly and/or the procedure to remove the headliner in a 2005 'Burb?