Just a few simple quick questions since I don't know squat about cars, but at least I'm learning. First question, I have a 95 Cougar with a moonroof and about a foot and a half behind it is a square shaped piece that looks like it can come off with a screwdriver or a good hard tug. I just wanted know what that piece is for, is it easier access to the moonroof if something needs to be fixed? Second underneath my glovebox there is a data link port, just wanted to double check because isn't it where you hook up a special computer to your car so you can know possibly whats wrong? Thanks!