Buddy - what in car entertainment setup are you going for - any tips to pass on?
I guess you want clarity for your Chopan and Bass for your 1812 overture

Or are you more into Drum and Bass

?
I got a JVC DAB radio in my Audi and it is great it also plays WMA and MP3 so 1 CD has hours of music on it. The wiring and install cost more than the radio though - it was worth it though.