How do you remove the plastic piece on the front edge of the sunroof. It creaks because it is loose or broken. This happened because the dealer had "repaired the sunroof" and the height of the sunroof in closed position is too low (already had to have it adjusted after their repair when the sunshade wouldn't even move). I'm guessing that like the rest of the car there are clips, easily breakable clips, I'm sure. Thanks.