restoring faded rear plastic side panels

BTW, used some VHT Vinyl Dye with super results on soft vinyl like my sun visors and a motorcycle seat - really good stuff fwiw. With this type hard plastic though, I really want to get it right with correct paint if I do it. Someone suggested using a good metal polish first to see if the mild abrasive in it could bring out a shine/luster. Might try that first. Some of these projects with hard to locate parts you sorta get one shot at it and risk screwing it up worse..Incidentally the Classic Industries include a caveat they are not an exact match for the orginals on a Barracuda,but gotta say they look pretty darn nice anyway.