Thanks Rich im up the wall with electrical issues and now I've been told I need to have a fascia for the speedo with mph on itAn aftermarket switch to power something. I put one in connected to a lead for my sat nav so that I didn't have wires all over the dashboard. A bit of detective work need to find where it goes and what it is for. Good luck.
Hi hirstyHas someone over-faffed with it? Can you talk to the previous owner?
There are front sensors but they are factory fit however there are aftermarket rear sensors but they work when this button is not switched on cheersDo you (the previous owner) have 'aftermarket' front parking sensors fitted by any chance? That style of button is often included with such kits and enables/disables the front parking sensors (so you don't get false alerts in queuing traffic, etc). Hope that helps.
The VW California Club is the worlds largest resource for all owners and enthusiasts of VW California campervans.