I have a 2001 M3 and the starter had been giving me occasional problems. Recently though, it has become a real issue and currently I can't get the car to start at all. Money is a bit tight right now, but I really want to get this repaired so I can enjoy the car for the rest of the summer (it's...

My '04 330Ci 'vert apparently had Assist added by the dealer since it has the box in the trunk, a mic, and the SOS mirror, but it does not include Bluetooth phone functionality. So I've found a TCU with Assist and Bluetooth from an '05 car and am ready to go. Or am I? Do I also need the...