Right Guys. I am new to the forum and hoping someone can help me with. I purchased a MKVI Golf GTD with RNS 510 sat nav unit. The problem I am having is that I can not change the language and also there is no sound. I took it to dealers and they said the unit was "stolen" or "fitted afterwards". Didn't really give me a straight answer however did charge me. Now I have parrot Bluetooth fitted in my car and the sound works perfect through that. I can use all the aspects of the unit but will not let me change the language and has no sound. Any ideas will be most appreciated.
Many Thanks in advance.