We’ve released v1.9.3 for BETA testers. If you haven’t seen this version in your companion app, please send your UDID to support@carsifi.com. It has fixes for some head unit versions for Mazda & VW
The FIX for me was to “Activate” Developer Settings in the Android Auto Phone app. Scroll to the Bottom and Tap “Version” ten times. Approve the choice in the Popup Window. Go to the Upper Left corner and Tap the 3 Dot symbol. Open Developer Settings. Tick (check) “Add wireless projection to settings”. Bingo, winner, winner, chicken dinner. I also Ticked (checked) 'Collect GPS Data" and “Unknown Sources” as that is what the suggestions I found said to do.