Audi A3 SE TDi S-A bad radio reception

[Peto Pedro]

Hello guys I just encountered  quite bad radio signal constantly  (in UK)  ..  When I have capital (or any other) it plays bad and when I tune with right turner out of capital radio frequency and I go back it will start plays properly suddenly and louder .. So weird  And pretty often it looses stereo and just plays mono 

Anybody knows where problem can be ? 

Thnx

[Kofita]

Have exactly the same problem seems to be just with Capital, would love to see a fix for this.

A3 1.9TDI 2007.