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Following the demise of my heater matrix a few weeks ago I realised, as I had suspected, that my head unit had been damaged by water ingress. I therefore bought a new one, checked all the connections, cleaned them all up and fitted it. All was well until a couple of mornings later when I first started the car, the radio switched itself off and then on again. It also lost all the presets that I had set in doing so. I assume the constant live was being interupted?? It has since continued to do this, at various and random times. One night it kept coming on and off, seemingly caused by bumps as I drove along. I have had it out since and checked all connections again and all seems well, though it only lasted for a day or two, before it started playing up again. So what is likely to be the main cause? Faulty headunit? Bad earth? Break in the constant live (though having checked, that seems ok), Something shorting? Any common area on the 205 which normally causes this? I have a feeling, but can't be sure, it had done this once or twice with the old headunit as well, so I'm thinking it's more to do with the wiring than the headunit itself. Thanks…