To use DAB you need a DAB antenna with USB module. Search the webshop for "DABANT" to find the product, if you have not yet purchased it.
Instructions:
1. Place the DAB window antenna on the windscreen and stick the black adhesive strip on the chassis. Make sure that the adhesive strip does make contact, if there is a layer of paint on the chasis, you can sand it away. (see picture)
2. Connect the antenna cable to the supplied module, and connect the module to the USB input of the car radio with the USB cable.
3. Search through the Playstore application located on the car radio menu, for 'DAB-Z' or a similar application that can search for the DAB stations.
Now it should be possible to listen to DAB stations.