I think the only way to get the right shade of gray is to go 85-87 regal. I asked eric fisher a question on interior colors and he said the TR gray was started in 85. also used on some other gm cars but the padded surround is likely regal only. Now, if you want to paint/dye it you could likely go back much further. Looking at the pics I have of that 82 GN, the surround looks very close to the same dimensions but I don't know for sure. Eric fisher could tell you but he hasn't been on here much lately.