I don't know about that part of the car not getting any sun. My girlfriend has 20,000 miles on her Mustang and she's experiencing some fading on the power outlet plug. Of course it's a different material but that just proves it does get a good amount of sun. It looks good though, how much was it?

 

the car was about 55k that plaque and the sills cost me 400...saw them 2 weeks later on carroll's site 4 less D*MN IT!!