Likewise – just swapped out the audio in our van. Previously had a Blaupunkt that did iPod (via Cable), BT phone and BT audio but not DAB. Blaupunkt stuff is now crap – badly built and badly designed. A shame.
For research I’d recommend DABOnWheels even if you don’t end up buying everything from them.
We went for the Kenwood 4551 which i think I picked up for about £130. The Bluetooth add on module was another £100 and picked up the FM aerial/wiring loom/steering wheel remote interface from eBay for about £40. Then needed a DAB aerial. The £22 glass mount fitted discreetly and is giving excellent reception. I’ve yet to have a dropout from home to the Scottish border.
Not cheap but very happy with it. I’ve had to reset it twice in 4 months so suspect there’s something slightly flaky about the bluetooth but hopefully a software upgrade will sort it at some point but it.
There is a double din unit but they’re more of a theft risk in London.