Hi just after some help i'v just got a 2002 A4 and having problems with the radio reception the aerial is connected to the radio and i've taken the back trim off to get to the aerial amp but not sure what i'm looking at there is a black rectangular box with three wires going into it to one side of the window, is this the amp or is this for the heating elements in the window or does it do both. any help would be much appreciated.


Cheers, Dave

 

That is the antenna booster.