I hate to say it, but we have a golf MK6 and it's the worst car stereo I've ever had. The DAB is pants, it crashes/restarts all the time and the SD card reader stops being any use with more than about 2GB of mp3s.. yes - it has a colour touch-screen, but at the cost of being useful!! The garage says "computer doesn't record any errors, so there's nothing we can do"
sorry - not an answer - but our old Golf MK5 with physical buttons and it's dot-matrix display was light-years ahead(behind) in terms of usability.
My answer was to buy an in-car iPhone charger and use my spotify account... and swear to not get another golf (the stereo issue was one of many going from MK5 to MK6)
whitling2k