Yesterday went for a journey for 30 miles, all was fine, radio working.
A smaller journey later, lots of static across all radio channels.
Then another little journey, radio channels all fine again.
And then another small journey, radio stations all broken with static.
Final journey back home, all memorised radio stations working fine again.
A potential coincidence, I had issues with misted windows particularly during the journeys when the radio was having static, leading me to believe that air-con had an issue during those times.