Anyone install (or remove) your OEM cross bars? Not the aero ones for Sport models, just the plain cross bars. The screws are in so tight I can't get them to budge. They're star shaped (torx) screws & the part came with a screw driver. Had a few others try as well. I'm going to try with a drill bit attachment tomorrow but I don't want to risk stripping them. Anyone have any advice who HAS done this? I don't want to have to go & spend money on install after I saved it with my double discount codes.