I think I have a couple from some old 325's that I parted out. There are fewer wires and they're likely different colors but the connector is the same round C101. I don't have the late model ones, just sold the last one I had.
You don't need an M42 C101 from what I've seen. IIRC any car built after 9/87 should be the same, though I could be wrong. Might be that the airbag power wire (#19?) is missing.