Aerial booster
 

I installed an aerial booster for the JVC head unit in my Skoda Fabia a
couple of weeks ago. Worked fine. Car went to dealer for power steering
pump replacement. Now aerial booster not working - no stations can be
picked up. Got replacement booster from shop. Still no joy.

I can't think of what the mechanic could have done to cause this. (
assuming that's what caused this problem ) He will probably have
disconnected the battery and reset the computer. Can anyone think of
what's causing this ? I've run out of ideas.