Well, I did mine on Saturday. Still haven't had the repair wires show up but didn't seem to need them. Where were they supposed to go anyway.
I used andy-uk's wiring diagram as mine is a 2005. Thanks heaps Andy.
The hardest part was finding where to get the wires through the firewall and into the car and being able to do it without pulling half the car to bits. Eventually found a way that was very easy.
I just cut and soldered all the necessary wires and put it together, did the basic settings thing with the buttons on the climatronic unit and all seems to be working fine.
Okay, I have an error due to non-single flap motor as discussed earlier, but otherwise I'm a happy chappy.