New phone is not automatically connecting to my cars Bluetooth transmitter like my prior iPhone would.

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New phone is not automatically connecting to my cars Bluetooth transmitter like my prior iPhone would.

I just recently upgraded to the iPhone 16 plus from the iPhone 14 Plus and on my 14 plus when I would enter my car my phone would automatically connect to my cars Bluetooth transmitter. Now that I am using my iPhone 16 plus it no longer automatically connects and I have to manually open Bluetooth and connect that way which is a drag especially when I’m in a rush is there anyway to make my new phone automatically connect to my cars Bluetooth transmitter like it did on my 14 plus.

Posted on Dec 4, 2025 5:17 AM

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Answer 1

Dec 4, 2025 11:56 PM in response to Alcmenes

I have two cars one with Sony DSX A410BT and the second one with Sony MEX BT3153U

My iPhone 6 iOS 12.2 when connects to this audio system

As soon as the ignition is put ON in the car with the audio system, Sony DSX A410BT connects automatically to Bluetooth and then automatically opens iTunes and automatically starts to play from where it last left off.

All Automatic: Bluetooth connection, Opening iTunes, Song selection, Play

But, But - Same iPhone

As soon as the ignition is put ON in the car with the audio system, Sony MEX BT3153U does nothing automatically

Manual Connection: Connect Manually to Bluetooth, Manually Open iTunes, Manually Select Songs, Manually Play

How to use CarPlay with your iPhone - Apple Support

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