i just bought cruise control / DIS stalks for my 2005 A4. my indy has vagcom and so will be able to code them for me. im just concerned that when the DIS stalk is installed that i will get the error for the empty washer fluid. do i need to but the wire from audi to stop this error, or will my indy be able to ground it and delete the error without me buying anything else?! cheers.