I have a problem with my radio. A sound quiality is very bad. I thought that antenna amplifier was needed. Standart antenna amplifier locates inside the antenna on the car roof and it takes power from central wire of antenna cable. I gave +12V to the central wire and cut them from radio unit with diode. I made possible to receive a AM stations, but FM sound quality was still very bad.
I've told with other passat owners - some of them had same problem. I guess it is the typical problem for B5. Sure, I can resolve it with setting a new antenna (for example inside my dash board - it will be fully invisible) but I want to recover existing antenna.
I have an idea, that the problem is in the antenna cable between radio and antenna. Maybe it was damaged.
Does anybody have the radio quality problem to be resolved?