I need a VCDS interface for my 2002 A6 2.7t, with xenons if that matters. Will these cables on Ebay work?
Example:

Thanks, I'm a newbie at this.

 

I recommend that you purchase the official RossTech cable. Yes it is expensive but you get what you pay for, and believe me, the cable will pay for itself if you own an Audi. I think your car has a CANBUS and if it does, these cheap cables will not work. Plus, if you buy from RossTech you will get support.

 

Thanks. Info appreciated.