I have an unresolved electrical problem with my '53 Mondeo TDCi 130 Estate 120k miles. After about 1 hrs night driving the Sony CD panel starts to flickering slightly. With time this increases in intensity over the next 20mins or so until they are almost flashing on-off. (very distracting when night driving) I have done some investigating (fiddling!) and found if I use main beam or put heated front or rear screen on it reduces and almost stops the flickering. If I put on all three then it stops. If I turn stuff off then it gets worse and I think it then also shows up slightly in the dash illumination but very slightly. Dash lights dimmer position does not seem to affect the flashing - not sure as it just makes the problem more or less obvious. Seems like an electrical load problem? This has been happening since I bought the car about 3 1/2 years ago and still does it after having replaced the alternator after it failed recently but, was hoping, it has not change the flickering problem. Is there a regulator for the radio/Sony and or dash illuminations? Usual solution is to turn it off. Help!