Guys
After some advice.
I have a 2009 D4 2.7 with the large touchscreen and thd harmon kardon system. Today i had no sound from the radio, you could jnitially select different radio stations, etc but it seemed to be stuck on the selected station with no sound. I turned the car off, and after restarting the touchscreen is blank. The phone will connect thru bluetooth but no sound. Can anyone point me in the right direction please.
Thanks Craig