After connecting your smartphone to the CarPlay Smart Box, there's no audio. How do you fix this?

1. Lock your phone, then turn on the screen and click the AirPlay button on your phone screen;

2. There will be at least two connection channels: one is CarPlay; the other is Bluetooth.

- CarPlay indicates the AUX configuration channel of the CarPlay system
- Bluetooth indicates the car's original Bluetooth audio channel

3. The audio problem is usually caused by incorrectly selecting these two channels. Switching to the other one will resolve the issue.

4. There is another solution:

Go back to the car's original system and find the external device.

Look for the AUX and Bluetooth channels. If there's no audio, switch them.

- Audi: Return to the original car system => Media => AUX-IN;

- Porsche: Return to the car's original system => press the "SOURCE" button => press the "OPTION" button => select "SET MEDIA/AUX";

- Mercedes-Benz: Return to the original car system => (NTG4.5) in Engineering mode;

- BMW: Return to the original car system => Multimedia.

5. What if I don't see the AUX option/channel in my original car system?

• Go to your car dealer to activate the AUX option;
• Get an AMI-AUX cable to enable the channel. If you need to purchase a cable, see the following link: