I suspect this is a problem with the car: it connects and sends the command to play. But Tesla has a particularly poor implementation in which it will do this e

I suspect this is a problem with the car: it connects and sends the command to play. But Tesla has a particularly poor implementation in which it will do this even if it’s not playing the Bluetooth stream — the phone would stream into the void and the car will play other music. I don’t think this is Apple’s fault. Apple could add a per-peer setting to disable play commands over Bluetooth or maybe to disable them within a few seconds of connecting.