pbrown said:
So if you have just done it. How or who did it
Iv recently also done this to my 07 2.0ltr.
Cost about £100 for the BMW stalk and wiring loom.
First parts easy, removing the under cowl around the steering wheel, cutting a hole (there are already guides in the plastic), fitting the stalk and connecting 3 or 4 wires behind where your light switch is.
The hard part is the final wire, and its not hard to do, it just goes in different positions depending on the engine model you have (yours will be the same as mine). You have to run 1 long wire from behind the steering wheel, through to behind the glove box, and through a hole in the engine bay bulk head into the cars electrical box (the white plastic box in the engine bay with the black plastic lid) then attach it to a pin-connector.
I downloaded a copy of the BMW instructions, and there RUBBISH as its vague on which pin to connect too! luckily other 2.0ltr Z4 owners on here that had done the mod helped me out, but that last wire was still a massive head ache.
Good luck, let me know if u go ahead?