I covered my rear window trim in electrical tape. Looks fine to me. I had to use two pieces on the top and bottom to make the width. If I could find some extra wide electrical tape that would be much better. I even overlapped it so that the edge of the tape touches the glass to seal the junk out from under the trim. You have to be really careful not to stretch the tape at all while you apply it, or the hot/cold cycles will loosen the tape up and shrink it.