For Klyde car headunits (MTCD/E, sold under various brand names) there is a proprietary DAB+ module available that is connected to a dedicated socket on the back.

The app provided with that module is simply awful, so I've made a replacement. Note that the code is really my own by now, but the package name must stay as the original because it enables access to the serial port.
Changing it results in an error.

The user interface is extremely simple, optimized for car screen, with large buttons and selection areas - those touch screens are not always perfectly calibrated.

Now comes with color customization for the info text. Just touch and hold the info text area!
Thanks to the devs of the "AmbilWarna" color picker !!

For an in-depth discussion see web address of this app (XDA Developers).