shadowline

Left my car a couple of weeks today starts fine everything normal execept all functions on the steering wheel no longer work, nothing, not even the tiptronic I don't think it's illuminating either.... Any ideas guys 2004 Cayenne

shadowline

Is there a fuse which covers all the operations radio etc and the illumination etc?? Horn works ok?

endless_corners

I have a horn that works when i arm the alarm but not when i press the steering wheel.