Found a Sony MP3/USB etc head unit that has red illumination that should look OK in the S3. What bits do I need to do a nice job of fitting? Facia - which type? Aerial adapter - ditto? Harness - ditto? The car has the subwoofer and cd changer in the boot, tape player in the dash (all original) Also, which removal keys? Seem some stuff on ebay however not sure on specifics for this car. Ithangyew.