On Mon, 20 Jan 2020 12:07:23 GMT, John Not.responding.@dotcom wrote:

My DAB has been breaking up recently and the radio automatically drops to
FM. This is a bit annoying though die to the slight time difference.

Grubbing about on a Facebook Group someone asked if I had anything plugged
into my Cigar Lighter Socket - I have - a Dashcam. I unplugged it and the
problem went away.

It seems the 12v to 5v ciruit causes interference. I found a couple of
YouTube videos that seem to confirm it.

Now I need a solution!

https://youtu.be/O2npY4BApZM?t=211

My dashcam is 'hard wired' to the fuse box to avoid the socket. It
was fitted by Halfords.