The last two mornings I’ve not been able to receive DAB stations on the radio. It’s been ok coming home but not in the mornings. Reading back on similar threads; I’ve an inkling it may be the heated windscreen. It’s happened before but I cannot for the life of me remember if it was a cold morning. Is it a ‘thing’ or am I barking up the wrong tree?

Try rebooting by holding the power button down for 15secs. Works for me. 

Next time it does it I will. Some frost is forecast next week and I’m in Scotland for a week, so I should get a chance.