Anybody got a Supercab? There are two (usually black painted) panels above the side doors, in between the two side windows (front and back). Question is, what is it....plastic?.....metal? It looks like metal the way it's rounded around the edges but almost feels like plastic.

Anyways, mine is starting to discolor a little. Wondering if I should use metal polish or wax. One of my product reps says to use wax on it. He also said to use wax on the chrome plated trim around the grille. Who knew? I've always used metal polish on that as well.

Any thoughts?