Iphone 15 Calls not working in car via AUX cable

Please check the cable used.

1. Check the Adapter:
   1. iPhones since the iPhone 7 lack a headphone jack, so you'll need a USB-C to 3.5mm headphone jack adapter to connect your phone to the AUX cable.
   2. Make sure the adapter is MFi-certified (Made for iPhone) to ensure compatibility.
   3. Try a different adapter in case the current one is faulty.
2. Verify the Cable:
   1. A damaged AUX cable can cause audio issues. Try using a different AUX cable to see if the problem persists.

peveltri wrote:

Iphone 15 doesnt work in car for phone calls with auxillary cable, but works fine for music

Does your car have Bluetooth and if so, have you connected the phone via Bluetooth?