Can't help with much here, but the switch you've found on ebay is NOT the right one:
This is the correct switch:
If buying new from a dealer the cost is about £76 +VAT & the part No. is 8Z2 941 531 E 5PR
Last edited by Mustang-owner; 12-07-2012 at 10:28 AM.
Silver 2002 1.4 TDi SE
Red Sports Leather, TTS FBMFSW, OSS, Bose, RNS-E with Audi Bluetooth Telephony & SDS, DIS, Audi iPod link, Cruise Control, Komfortblinker, Rear Cup Holders, Auto-dimming Rearveiw Mirror, A2OC Mats, TT Pedals, Puddle Lighting, Headlight Washers, Headlight Protectors, Debadged, 0.659 5th Gear , Whiteline Rear ARB, Koni FSDs & Weitec Springs, 17" TT Ronal Wheels with 215/40 Tyres, Floppy Wiper, Body Kit, Spacesaver, Heated Wing Mirrors, K&N, Stealthed & a Coat-Hanger!