I contacted Samsung support about this via Facebook, and they couldn't offer any help. They suggested that I post it here.
I'm having an issue with Bluetooth connectivity. I have my Galaxy S10+ paired with my car, and also with my wife's car, for when I drive it.
I was in my car this morning, car running and phone connected, getting my podcast player going. My wife got in her car and started it up, and my phone immediately connected to her car (in addition to mine - both were connected), and the podcast sound stopped in my car. (I assume it started in hers, but I don't know for sure.)
There needs to be some way I can prioritize these connections, or keep both from being active at once. Unfortunately, all Samsung support could suggest was to unpair from my wife's car. That's not really a solution, as I'd have to re-pair it every time I drive her car.
Anyone have any suggestions?
Edit: I'm sorry for the rant... I have no suggestions, only compassion and understanding.