Brake light above back widow had been leaking really bad. Trying to dry inside cab and get any water puddles out of the interior. Standard 2door 2009 f150. How do I get the corner/back panels off. They seemed to be popping off fine and than I ran in a problem with the seatbelt being in the way.

 

If you take the cover off the top of the seat belt top there is a bolt there holding the seat belt in, removing it will allow you to get the panel out of the way.