I know it doesn't help but I'm now suffering the same problem after years of perfect reception. The FM station keeps cutting out and after some lengthy observation, it seems to coincide with the stereo symbol being displayed / stereo being received. I can even get full signal strength, but if that logo's not there I only get static. As this is a new issue I can only assume it's something to do with the tuner module itself. Dry joint may be as it 'seems' to be worse when everything's cold?

p.s. I've never been able to receive any AM stations for some reason I don't understand