Any suggestions for android radio that will be dab & allow me to plug phone in to use phones Google maps?

DAB is normally a USB Extra device for any of the Android Units. Remember you'll have to change your cars antenna to DAB compatible too, from experience those stick on windscreen types are useless.

Those Android head units normally have a couple of USB ports in the rear so one of those can connect to the DAB Dongle.

All.of the Android head units would do Android Auto from your phone, providing GoogleMaps or Waze etc.

I added an Wireless Android Auto dongle to mine, so that's wireless too.

Thanks a lot,at the moment I have a da motion unit which has a window dab aerial which I should be able to keep