the easiest thing to do is do a youtube search for 3M Di-Noc. that is the vinyl that most people use, there are a lot of videos out there showing the technique. once you pop of the trim pieces you just cut the wrap to a close fit. peel and stick the wrap to the trim piece. get a heat gun and start shrinking the wrap to the trim. it takes some minor practice, but it is not that bad. get some extra in case you need to redo a piece. the stuff comes right off if you need to remove it without affecting the finish on the trim piece itself.