MMI 3G Plus units allow you to make a full connection with MMI, you can use it as a handsfree for phone calls, and to stream music.
MMI 3G Basic / High only allow you to use your phone with MMI as a handsfree only for phone calls.
How to connect your mobile phone? Please take a look on this video.
How to play music via bluetooth on MMI 2G High / MMI 3G Basic & High?
To stream music via bluetooth on to MMI 2G High, MMI 3G Basic & MMI 3G High you will need separate external module.
- Stream music via Bluetooth / AUX interface for Audi MMI 2G
- Bluetooth and AUX module for Audi with MMI 3G Basic / High navigation
Also you can add module with a bigger functionality like Apple CarPlay / Android Auto module, which is available for more MMI’s: