Odd radio problem??

[MikeA3]

Hi all, I’m new here and quite new to Audi’s.

I’ve had this 2014 A3 TFSI S Line Saloon for 18 months,I love it, lovely car. It was a one owner, low mileage, I have the full history. Nothing has ever been pulled apart on the dash or interior.

This started recently out of the blue.

There is regularly no sound from the radio and CD player. All the radio, CD, volume, mute info is shown on the pop up screen. Parking aid sound works. I’ve carried out the MMi reset a number of times.

I can start the car one morning, plenty of music, play with the radio, change stations, go for a drive. Next trip nothing, very frustrating. 
Has anyone experienced this??

I’m taking it to a car electronics expert I know next week, can anyone give him some ideas.

Any comments would be appreciated.