Swamp Donkey

Well my XJ was blessed with a roof rack, i want it off there, it being on there builds up snow and too, im not gonna be mounting anything on the top.. So i started taking the torx bolts out, all came right out except one on each side, the sleeve/bolt inwhich it tightens up to just spins, i tryed to put pressure on it to keep it from doing so, no luck. Can these be reached from inside underneath the headliner? Also, for those who have taken yours off, what did you do about the holes?