Hello, I have a problem with horn in my Lupo 1.7 SDI . I checked contacts in steering wheel - ok ,fuse is ok, horn sounds ok when connecting voltage from "by-pass". Summing up it looks like relay related to horn is broken. Can you please help me with some diagrams or list of relays for VW Lupo 1.7 SDI (built year 2000). Or maybe somebody knows in which socket number it is horn relay or which relay number it has. Thank you in advance for your kind assistance.