Re: 147 ICE.....again!
You can replace your head unit with a MD player without any problems. The sound quality will probably get better, even with the crap Alfa speakers. All aftermarket head units have dual power supply (yellow and red wires) while the factory Blaupunkt has single (red wire), so make sure you mention that to the technician. Thats not a poblem, don't worry. I dont think that there are MD players out there, compatible with the CAN BUS, to communicate with the instruments panel's display , I 'm afraid you ll have to compromise on this one, but then again I could be wrong (things change quickly) but its not that big deal imo anyway.