hell you talking about, black_sedan?
(ive taken my door panels off to install cs a while back and know there's no plastic sheets that thin inside the door panel where you can reach). i did notice the dealer did not peel off the protective sheet during delivery though. similar clear sheet fell off when i pulled the panel off the door...hence my first post.
same goes with your G. ive taken off the G's door panels off too while installing some 6501's.