Anyone have an aftermarket source for replacing the AC Vents? If not, any suggested replacements for the gray (or black on later ones) plastic trim housing that the round vent slides into? The vents are looking very work and the silver trim rings are brittle from being baked in the sun for years. Currently have 2005 GT with the silver housings and vents, but fine with Black if I can replace all 4. Ebay only has used ones, and I'm not paying $100+ plus each for NOS. I've also tried local junk yards with limited success.