Hello friends. I have a problem with my radio. A Harman/Kardon ProLocig7 went off this morning, the radio turned on. This also goes on, but does not bring any sound. Also on CD no sound. Not even a noise. When I operate the Laustärkenregulator no display for the volume.Radio on and off does not change it. After about 8 km drive it suddenly goes again….I had the last days a par times the feeling that the sound is quieter than usual. And at the T Elefonieren about the hands-free system I had a ,scheppern, in the loudspeakers. Can it be that the amplifier says goodbye? If so, where does it sit? I thank you for your advice LG