hello you need a special software like VAS with an Adaptercabel to connect to the ECU for Audi and VW. The switches are under the right passenger food mat,which the relais are. Maybe a Audi and Vw Wokshop can help with the decode.
Wer Audi V8 fährt braucht sich um seine Freizeit keine Sorgen machen. xD XD XD