USB C to 3.5mm headphone jack adapter won’t work for iPhone 17 pro

I recently got the 17 pro and also bought and apple branded usb c to 3.5mm audio jack so I can connect to my car via aux cable for music. Whenever I plug it in, it clicks about every 2 seconds and the music comes out of my phone. There aren’t any pop ups or notifications when I plug it in either. Help me

iPhone 17 Pro, iOS 26

Posted on Oct 21, 2025 6:43 AM

Reply
Question marked as Top-ranking reply

Posted on Oct 22, 2025 6:19 AM

I am unable to replicate your issue. My Apple USB-C to 3.5mm Headphone Jack Adapter works as expected with my iPhone 17 Pro.


Consider that the 3.5mm cable that you are using may have a fault - or, potentially, is not wired correctly for your iPhone. There are different wiring standards for TRRS connections.


In general, there are three main wiring standards for 3.5mm TTRS connections - and they are not interchangeable:

  • CTIA (Apple)
  • OMTP (Nokia)
  • Camcorder AV




1 reply
Question marked as Top-ranking reply

Oct 22, 2025 6:19 AM in response to Peyton_A02

I am unable to replicate your issue. My Apple USB-C to 3.5mm Headphone Jack Adapter works as expected with my iPhone 17 Pro.


Consider that the 3.5mm cable that you are using may have a fault - or, potentially, is not wired correctly for your iPhone. There are different wiring standards for TRRS connections.


In general, there are three main wiring standards for 3.5mm TTRS connections - and they are not interchangeable:

  • CTIA (Apple)
  • OMTP (Nokia)
  • Camcorder AV




USB C to 3.5mm headphone jack adapter won’t work for iPhone 17 pro

Welcome to Apple Support Community
A forum where Apple customers help each other with their products. Get started with your Apple Account.