I have a 2002 C320 ( w/premium bose stereo) and plan on installing Alpine CVA-1005 head unit and replacing all the stock speakers with Boston Pro's then adding amps and subs. My question is...is this possible? my main concern is having the dash menu still work. Do i have to worry about this fiber optic BUS that i heard about? My audio controls on the steering wheel will abviously not work...but thats ok. Any advice, info or suggestions out there? A local shop said that what i want 'can' be done, but it is difficult process.