Why does my iPhone not play music through USB?
Check your USB cable
Try a different USB cable if possible. Try a different USB port if possible. Check your cable for signs of damage if your cable looks damaged, do not use it. Check the charging port on the bottom of your iPhone and the USB port for any debris, remove any debris.
Why wont music play through USB in car?
If your stereo doesn’t recognize the USB device, disconnect and reconnect it again. If there is no playback after reconnecting the device, check the following: Make sure the USB device isn’t empty. Make sure the files in your USB device is compatible with your stereo.
Why music is not playing in car from USB?
If the device isn’t recognized, remove the USB device and then re-insert it. Make sure that your device is set to the required mode before connecting it to the car stereo. Some USB devices need to be in a specific mode (such as a Mass Storage Class or Player mode, etc.) before you can use the USB device for playback.