Chet, i also reccomend G3 compound you can get it in halfords now not sure if its the same quality as trade product though try camberly auto factors if you want to get it, its in a yellow bottle you'll need a da as well to do it effectively. I have also used megs ultimate compound on my black gt and my friends 60s she had a red one and it looked so dated a quick polish brought up the colour straight away, check out some videos on youtube it proves it works effectively.