Does that mean you couldn’t get it to work?
The BMW GPS does not have maps. It has turn by turn instructions which comes from your Smartphone and the BMW Motorrad App. For many people that is all they need.
I could probably do 95% of the navigation I do with Android Auto and have 97% of the fun. I used to use paper mapes, taped to my dash, to navigate 30 years ago.
I ride different trips in 4 different states that were published in Motorcycle magazines along with a couple rides in my area through the Kettle Moraine and an 11 lakes ride, that were published by local motorcyle/ scooter clubs.
Because I wanted the most versatility I could get, I purchased a Garmin Zumo XT GPS connected to my scooter through the front wireing on the scooter. (where wspolack wired his camera.) I like to make my maps on my computer using Garmin BaseCamp then download to the GPS.
Other reasons you may want to go with a dedicated GPS, or Android Auto / Carplay devise is that some of the roads I ride are very twisty. These show up on the maps before I see the "Reduce Speed" signs and I know what kind of hidden curve's or switch back's I'm getting into.
Also all the maps including all of North America is loaded on the GPS. On some of my rides I have lost the ability to navigate by phone because my carrier (T-Moble) had no satilite signal in the area. The Garmin has rarely lost a signal and it can kinda fake it for a little bit when it does. I think this is because all of NA is pre loaded.