Q: My iPhone stops playing music through the USB port in my Chevy.  I reset the phone, but it still stops within a few secs.  What do I do next?

Hi KPrice4332,

Thanks for participating in the Apple Support Communities.

If your iPhone is not playing music or being recognized by your car stereo, start with these steps to troubleshoot the situation:

Get help using your iPhone, iPad, or iPod touch with your car stereo - Apple Support

1. Verify compatibility: Contact the manufacturer or refer to your car stereo's user guide to see if your device is compatible. Some accessories might have limited compatibility.
   
   
2. Update software and firmware if necessary: Verify that both your car stereo and your device have the latest software versions. Contact the manufacturer to see if any updates are available. If your device does not have the latest version of the iOS, update to the latest software version.
   
   
3. Connect your device: Verify that your device is on and has music content. Connect your device to the cable that came with your car stereo. For stereos that offer both a USB port and a 30-pin connector or Lightning connector:
• Try the cable that came with your car first if your device has a 30-pin connector
• Try the USB port first if your device has a Lightning connector

Some car stereos aren't designed to be controlled by Apple devices. When possible, use the controls on the stereo or steering wheel.

Beginning playback and controlling music

Some car stereos might require that playback be started or controlled from either the device or the stereo. Ensure that your car stereo is set to the proper input for your device. If it is and you cannot hear sound from your car speakers, try switching to your radio and then back to the proper input.

When using adapters to connect to your car stereo, you might notice variations in audio quality. When possible, use a shorter connection to the car stereo or try a different cable or adapter.

Disconnect and restart

If you are experiencing difficulties with the connection between your stereo and device, disconnect the device, and then power cycle the stereo and your iPhone, iPod touch, or iPad. When the Home screen reappears, reconnect your device. If you cannot power cycle the stereo, turn the car off and then back on to allow the stereo to power off.

Isolate the issue

Try to reproduce the issue with an identical or similar accessory, if one is available, or test with a second device.

For example, if you hear static coming from the left audio channel, try connecting a different device or try connecting to a different stereo or accessory that connects over the same interface (30-pin or Lightning connector, Bluetooth, or headphone jack).

Restore iPhone, iPad, or iPod touch

If you have isolated an issue to the device, restore iPhone, iPad, or iPod touch to its factory condition. You should rarely need to use this step with an accessory issue. If the issue affects only a third-party accessory, contact the accessory manufacturer before restoring your iOS device.

Best Regards,

Jeremy

Hi KPrice4332, 

Thank you for your reply. 

Due to the nature of your issue, you may find more information by using another one of Apple's support resources - https://getsupport.apple.com/GetproductgroupList.action. 

All the best,

Jeremy