Attached some missing trim today, what a pain in the bum those trim clips are! Or am I just a muppet and not using them correctly? If some one can describe the proper use that would be great! When I tighten the nut up on the back it twists the clip and the trim comes off? Ended up using some double sided foam pads normally used for holding aircraft together! Problem now.....it's the shiniest bit on the truck!