I recently purchased a used car, but one of the criteria was to not have all of this subscription/telemetry nonsense. The in dash head unit is new enough to have bluetooth connectivity, but no navigation or anything. It wanted to sync my contacts, but at least gave me the option of not doing that. I'm assuming it was to be used for displaying the caller's name instead of just the number on the display, but anytime someone asks to sync contacts it is a hard no on principle. As you said, just use the phone. Being in the holder I can see it before the in-dash display anyways.