Can anyone advise on the c53 e39 Becker audio unit fitted to my 525dse. Everything works fine but I've lost all sound. All the displays and functions are normal and the tape and cd player are driving. I've pulled the unit out to check the plug connections and they look ok. I had some pre-warning that things were amiss with a month of 'click click' background interference before total silence.
I'm a novice on audio, but could it be a faulty amplifier. If so is the unit repairable or am I looking at a complete replacement.
All comments welcome.