Re: "And bluetooth with Win10 is an iffy affair"
"Connecting isn't the problem. It's not realising it's disconnected when I take it out of the car that's the problem. It ends up in an offline mode but only infrequently so that I never get to learn the incantation needed to get it working again without a lot of trial and error. Or maybe the trial and error is the incantation."
That sounds as through there is something wrong with the BT implementation in either the phone or the car. I've not had that issue through three Samsung phones and 6 cars (two different manufacturers). It's looking more and more like I'm very lucky. Maybe it's time to go buy my first lottery ticket?