Mmi radio

[Jeaningo]

Hello Folks

I haven't seen that before I was last week in germany and passed France and the Netherlands Since I drove from the ferry in France I had no sound anymore but got in all countries all stations I bought then a new used amplifier but when I returned to the UK everything works again no issues at all.i couldn't find any settings that I get the sound back in this countries does anyone know what I have to change in mmi settings  or adjust update etc... 

Thanks jean