Couple of weeks ago I have bought 2001 A6 Avant 2.5tdi Quattro Sport.

I have noticed that I cannot pick up any radio stations on AM frequency.
The arial was snapped half way so I have replaced but still no Radio % live or any other station on AM.

I have checked all connections at the back of the radio but all seems to be plugged in.

Any ideas what could be the problem.

Thanks