I have the Part No 1T0035680P RNS 510 HW H10 SW 5238, it all works well except voice commands from the unit itself, phone book and calls recieved and sent no problems however when it comes to for instance cd, map, etc. I press star button say command it repeats command and switches back to what I believe to be my own voice but it’s all mush and scrambled and the unit gives out commands I could use.
Probably been discussed before but I can’t find same problem as mine.

Many thanks in advance.