I have an 03 G35 coupe. I'm not sure if it's actually weatherstripping or what, but on the top of my passenger door (not the window, the actual door itself) there's a seal, weather strip, something made of metal and rubber that clips on to the top of the door and it keeps popping off because it has been bent and I have no idea where I can find one to replace it. It's driving me insane!