Reviving an old thread.
My situation:
Car: '09 E90 without sport seats, without heating, without lumbar support
Seats: '06 E90 sport seats without heating, of course with side bolsters, no lumbar (unfortunately)
Where do I get the power from to go to pin 9 on the '06 donor seat? I do not have a "steady plus" coming from my car to the seats, am I correct?
Cameron, the maker of this video, recommends connecting pin 7 to 9. But why connect those two connectors if the car is not giving power to either? Since there were no sport seats in the first place.