VW Electrics fuse box
Waterboxer fuse locations http://homepage.ntlworld.com/robertj.green/T25/Knowledge%20base/electrical-Fusebox-locations.jpg
VWlewis added : Fusebox Connector Description
The pin arrangement for the connector C in a late model fuesebox is shown below
The foglight +ve feed from the 1st position on the foglight switch comes out of Pin 22 on Connector C (see above - via fuse 6 and needs a relay fitting to position 7). Relay 7 is driven by the sidelights so the foglight power is only connected once the sidelights are on. Use this feed from connector C to drive the relay for the foglights.