My 2011 HSE has DAB fitted to the Premium Audio System. It was working just fine until fairly recently - signal was a bit patchy and I understand that the DAB won't be at full strength until (IF) they ever switch off FM. The Waveband button selected FM1, FM2, DAB1 and DAB2. I mainly used it for BBC Radio 5 instead of the dreadful AM alternative. Any suggestions?

Found this using the search

https://www.freel2.com/forum/topic30152.html?highlight=dab

The network that has the DAB included can get it's knickers in a twist, disconnecting the battery for 30 minutes can reset it. Dab module in the boot can fail. DAB aerial connections can fail. All documented somewhere on the forum. Tangiers Orange - gone, missing her
Replaced by Ewok what a mistake - now a happy Disco Sport owner