So much for putting my phone in a Faraday bag in my car. Car still detects the phone via Bluetooth. If I turn Bluetooth off, phone turns it back on after a while. So far car cannot detect phone if it is powered off but who knows. That could just be for calls & texts. Phone even off but with the battery still in it could have one or more chips reporting various sensor or location data to the car not for my use but for human herd tracking purposes. Moo on queue!