Thanks! I thought about what you said and remembered I had a somewhat tricky (but useful) app called Bluetooth Volume Control. I was able to remove the Volt connection from that app and now everything's fine.
Edit: the Wyzecam app will also cause this problem independently. If it's open, even in background, when you connect to the car, it will do exactly the same thing.
Edit: the Wyzecam app will also cause this problem independently. If it's open, even in background, when you connect to the car, it will do exactly the same thing.