Originally Posted by
1-PD
as a rule they are crap hence most ditching them for better antennas
Totally disagree, I find the reception to be very good.
It's a good idea as well as it resolves the issues of external antennas in terms of vandalism etc.
OP, first make sure you have power to the amp, the aerial is within the windscreen so make sure this is not damaged and has good connections.
Martin