No sound notification connected Bluetooth to my car

Hello noelfromstockton,

We understand that you're experiencing issues with audio notifications when your iPhone is connected to your vehicle. Did you follow the actions provided in the article below, to pair your iPhone and car? Have you checked to see if your vehicle needs a firmware update installed?

How to connect your iPhone, iPad, or iPod touch to your car - Apple Support

If so, did you try the steps provided above for both wireless and USB connection?

Best regards.