Originally Posted by
Antti O
Hi!
There is no difference if the coaxial cable is attached in the antenna amplifier or not.. And not any difference if the boot is open or closed.
Okay, it does sound like the aerial lead is not actually properly connected to the rear of the head unit itself. Even if the amplifier was inoperative, you would receive @ the very least, Radio 2 with the aerial connected.
I would try connecting another aerial (simple accessory one would do) to the radio and see what you get.