If you have a rear dashcam fitted to your Ford car then they seem prone, particularly on the new Puma’s, to causing interference with the DAB reception. In the case of the Puma, this is because of the location of the DAB antenna.
I had my dashcam fitted by Halfords who did a great job but the interference was terrible, making digital radio pretty much unusable. I took it back a couple of times and, each time, they got it a little better. But I was still unhappy so took things into my own hands and did some experimenting. As a result I’ve got it better still – not perfect, but better.