Hi, I have a MK3 8v. It's totally standard and I want to keep it that way. However, when I bought it there was a cassette player in it from a MK4 Golf. I have removed this and installed a Sony CD head unit which as far as I know is a standard head unit size but there is a gap all the way round the edge where you can see the cradle holding the CD player. Does anyone know if it is possible to buy a plastic surround to cover up the exposed metal? Can provide a pic if it would help. Hope someone can help! Thanks