My Radio head unit is malfunctioning, there is a loud crackling noise which is intermittent and not dependent on the volume setting. It is not changed by changing the inputs and appears in all three main speakers (hard to tell about the sub), and in any case I had the speaker amps refurbished some time ago so I think it is the head unit.

Does anyone know where I can get this serviced please (Kaz do you do this?)


Many thanks

Robin