Now I have my new 93er V8 for a little over a week and fight with a bad radio reception while driving, everything is good.
The car has a rear window antenna (ex works) and currently a radio from Kenwood. I have the same problem with another device from Blaupunkt, for example.
An antenna amplifier or what you call it is connected. This is such a part that is plugged between original antenna cable and radio and the power supply via a blue cable gets which to the cable of the electr. The antenna is connected to the ISO connector. It is also called phantom feeding, at least in Austria.

I suspect that the threads of the rear window antenna are no longer good and therefore the reception is impaired. Maybe some of you had a problem like that.
Currently I listen to the music via a USB stick or AUX cable (Internet radio).
Thank you for your tips!
Welcome
Daniel
