Bad radio dropout

[Dannycav]

Hi I have a 2015 audi a4 b8 and have noticed that when I get in the car and turn the ignition on without starting the car that the dab radio works fine but when I press the key agen to start the car and the car is running that the signal to the dab radio drops out and i get no dab stations at all but all fm and am radio station still work. Was wondering if anyone could help out.

[Steve Q]

This link might help: 

https://www.audi-sport.net/xf/threads/dab-radio-signal-suddenly-very-poor.349691/ 

It could be the amplifier. Or have you fitted a dash cam lately? 

[Dannycav]

4 hours ago, Steve Q said:

This link might help: 

https://www.audi-sport.net/xf/threads/dab-radio-signal-suddenly-very-poor.349691/ 

It could be the amplifier. Or have you fitted a dash cam lately? 

Thanks for the reply.

No I haven't had a dash cam fitted it was working fine I went to the shops about 2 hours later when I got back in the car it just wouldn't work.

How could I test weather it is the amplifier and how can it be replaced if so?