The fuse is not just for the pump of course.
I would make an assumption that the 2pin electrical connection is on the pump body itself, so it doesn't show as a separate connector in the middle of the loom in ELSA.
Here is picture of D3 unit:
http://www.ebay.co.uk/itm/AUDI-A8-D3...item3f2b5ae0d6. On the left hand side of the picture the plastic motor chassis finishes with something that looks like an electrical connector.
I didn't find D2 picture from 2002 model car.