IPhone Bluetooth pair with car even when I do not have a call

I recently started having a problem with my IPhone 4 s automatically picking up the sound system in cars, even if I did not call. This happens as soon as I turn on the car. When I press the keys on the phone I hear the click key in the car sound system, and the radio is removed. This happened with a Chevy Volt and a Ford CMax, then this is the phone, not the car. The only way I can make the radio work is to turn off the Bluetooth on my phone. It started only in the last week or two and I downloaded an update of the phone on the right, then, that could be the problem. Any suggestions?

If the phone is paired with the car, it will happen.

Can you not turn off the twinning/forget the connection?

Tags: iPhone

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