Over the winter I bought a Z3 Coupe to nurse back to original health. 1st project - out go the cheap aftermarket sport seats and in go some original Z3 heated, power seats. The sport seats came out fine, but getting the Z3 seats in is proving a challenge, for me at least. Factory hardware, check. Factory seat electrical harnesses and connectors still in car, check. "New" Z3 seats complete and clean, check. Problem is I cannot make the floor harness fit the seats. The floor harness has 4 connectors for each seat, 2 4 prong plug connectors and 2 "mine card" style connectors. I see where the "card" connectors go, but not the 4 prong plugs, nowhere evident at all. So that is my question and any help would be appreciated. Also, some bad news, seems I have a leak. With the driver's seat out, I pulled the floor harness up through its carpet slit to get the carpets nice and clean. I noticed some squish and the driver's floor foam is nice and wet. Could that mini tilt sunroof have a drain problem or is there another area to look at? Thanks for your help! Otherwise, what a fun car and it makes my E36 M3 feel like a Cadillac.