Look at this: Add Android Auto to the Kurviger App - #76 by zaphod_42
In English:
Do I have to understand that you buy a Carpuride and live with the limitations of AA (if it was then implemented in Kurviger) instead of an outdoor smartphone (e.g. OUKITEL with A13, 10000mAh, etc.) at half the price? Not to mention cheap second-hand goods.
Corresponding adapters for the BMW mount have also been around for a long time: BMW Navigator ablösen?! / Replace BMW Navigator?!