Audi A6 2006 - factory towbar wiring spec

flatcoat

I am about to take delivery of a 2006 A6 estate with factory (retractable) towbar and 13 pin electrics. Does anyone know with any certainty if they were wired for a caravan (with fridge enabled) to pins 10/11? (I think). From my 'tinternet search it appears
they were possibly not although simialr age VW's were and 2008 Audi's appear to have been fully wired. I know I can soon check when I have the car however I want to prepare for time and cost of getting it wired if proves necessary.