Hi Bendy,
Looks ike you used the correct pinouts as they are the same as this thread...
http://forum.a8parts.co.uk/showthread.php?t=908
which a few of us used, including me (but it was years ago)
If you are sure the electric pins were swapped to the correct posisitions, then I would say it's a faulty unit as it is quite a simple retrofit, the hardest thing is getting under the carpet for the physical swap out. It might be worth checking pins 1 & 2 for 12V as if any unit on the MOST bus doesn't power up, the whole MOST bus is down (no bypass feature).