I am all of a sudden getting this message: ' The sound settings will be made available again at the end of the phone call or announcement  or once you have finished parking'. Naturally, none of these is taking place. I have booted the unit a couple of times and VCDS does not show anything. Navigation works, it is just that there are no voice instructions any more. 

 

How to get rid of this?

Invoking factory settings didn't help.