The extra parts for the Auto-levelling and AFS are
Control Module 5M0 907 357C - These can be bought on German ebay for about £45
Self Leveller for Rear 1K0 941 273L - Got this for £25
Power modules for the lights 7L6 941 329 B - These are hard to find cheap but I managed to track them down for £60 each.
Wiring loom from Kufatec although you could probably make it yourself.
The connections from the control module are
3 wires to the Autoleveller.
2 wires to each light connector.
2 wires to the CAN controller.
1 Switched 12V to the fuse box (I am going to use the fuse which the manual levelling uses at the moment which is the upper right most fuse)
***edit** can't use fuse as it also supplies other things like the MAF so I used position 5 instead and made a new circuit. ***
1 Ground
The control Module fits behind the passenger side panel on the dash.
Unfortunately the Kufatec cable lengths do not mirror this so I will be extending a couple of wires to reach.
I also ordered a Rubber grommet (6N0 906 102) for the Leveller connection to keep the dirt out and some corrugated plastic pipe (N 107 324 01) to feed the cable through from outside.
It all looks reasonably straight forward if I can get the front upper grill section off
