I know it's a bit late in a reply but have only really joined the forum. Anyway, I have used Autoglym Vinyl & Rubber Care before on my old Focus that had black trim that was looking faded. I rubbed in on with a microfiber cloth and then buffed it off. Depending what finish you want you can just let it dry. It make the trim look fresh again, however doesn't last forever. It just became another step in my car cleaning process. Hope this helps.