I've been painstakingly removing the headliner from my 2000 LX470 in search of a really bad roof leak. I'm down to the last item to remove, the rear cooler control and I the bezel around the controller just trying to get it to budge. Anyone have experience removing it? It appears they may be a metal sleeve in the headliner, but I can't be sure. I got the unit to move about 1/8" but then the bezel trim cracked. It's always the last piece that's a PITA. The FSM is no help at all. No diagram or detail, only "REMOVE THESE PARTS: Rear Cooler Control Assembly"