You are asking for help on fog light wiring. I have a memory that the headlight switch will be prewired for fogs already and the wiring for the fogs ends up at the multi connector group at the base of the passenger A pillar which is where you hook up.
Several threads about retro fog wiring around, this one is the first I came across....
After gathering the fog lights and trim pieces from A2Steve, we set about making a loom for my sons A2. Steve supplied the lights with 6 inches of wire, so the first job was to solder 3m of cable to these and heat shrink in black sleeving to look like OEM, this was done on the bench beforehand...
www.a2oc.net
Andy
Edit. And another one....
I am adding original front foglights to my FSI 1.6, and have sourced the lights, grills, wiring harness (from eBay Germany - search for: Audi A2 8Z NSW Nebelscheinwerfer Kabelsatz Kabelbaum Adapter fog cable harness) and the main headlight switch (with the front foglight position). The very...
www.a2oc.net