I'm in the process of restoring some ws6 rims on my 78 ta. I don't have the build sheet so I don't know the original color of the inserts. It's a mayan red car with the black custom vinyl interior. I like the gold, but if it's originally the gray I would like to stick with the original color. I see a lot of red ta's with the gray on here and on the net. Is there anyway to determine the right color?