There are these nasty little clips on the top part of the rear bumper, inside where the trunk is. I can't figure out how to get the damn things off. They appearently screw off somehow, but when you turn them, the just keep twisting. Any help with this, would be greatly appreciated. I need to fit and install my bumper before I paint it, so I can make sure everything fits correctly. I think these clips are on the front bumper too....