Are you located in Europe? If so, while of course you are welcome here, note that this forum is primarily visited by US and Canadian Leaf owners/prior owners/prospective customers, so you may not get an answer unless one of the few European members speaks up.
Looking up "DAB radio" it appears to be something you find in Europe, as well as the Middle East and eastern Asia. We do have our own form of digital radio, actually two: "HD Radio" which is terrestrial and free, and SiriusXM satellite radio which is by subscription only. All Leafs sold in the US (not sure about Canada) have SiriusXM capability. I know my 2012 didn't have HD Radio capability, not sure about later models, and radios which do have it will generally have the HD Radio logo somewhere on the face or display:
Blue Ocean 2012 Leaf SV, lost that 1st bar at 34 months/26,435 miles. Lease returned 2 months later. Final LeafStat figures: 225 Gids, 17.44 kWH, SOC 91.89%, SOH 82.36%, 69.49% HX, 54.57 Ahr, battery temp 61.8 F.
Now driving a 2015 VW eGolf SEL.