3G MMI (HN+/HN+R)
As you access version information, you will see a serial code under Media/software version. The prefix of your software version will decide which software is installed on your Audi. And the serial code under the Navigation database version, tells you about the version of Map running on your system.
The 3G systems will start with the version HN+ or HN+R. They will also have 2 SD card slots on the front of the Audi Multimedia head unit in the dashboard. On the Audi A1 Mk1, the screen size can be 6.5" or 7" display.