After a lovely morning drive with my daughter around the lanes of Cheshire, it was time to get the stereo working so I headed to Manchester Car Audio who had fitted the current unit & amp. (For added excitement, the windows stopped working on the way). It only took a few minutes for them to diagnose the problem.
Mice had set up home behind the stereo & chewed through several wires including the RCA leads. They have made it remarkably cosy, as you can see from the picture below.
By the time I left a couple of hours later the stereo was working but the windows were not, so booked in Monday for a more thorough investigation.