My two cents...
What everyone else has said. On my BMW Motorrad Nav 5 the only function that works reliably is the Weather Radar. Which is good. The apps on the Nav 5, specifically the Tracker app, has never been able to connect to the iPhone6S (iOS9). It’s a shame that a company like Garmin would allow all these situations to exist.
Veniamo about
Garmin Smartphone Link