In Reply to: Will this unit fit in a 98 M3 with the H/K system posted by Jim Klein on January 03, 2000 at 14:01:56:
The ubit will directly fit and work in the E36 and even control the CD Changer. This unit replaces the C33 and is the same as the C43 except that the CD43 is a CD unit and the C43 is cassette. The E46 dash is oblong and not a DIN opening, thus the face is different, although it is in fact a CD43. There are two CD43's; one for E36 DIN and one for E46.