Not necessarily. Could be Bluetooth interference. If the media audio on the mobile phone is not turned off, the vehicle Bluetooth function is interfered with the signal, and the media audio on the mobile phone needs to be turned off.
3. The speaker line is abnormal. It may be that the horn line of the car is short-circuited or the situation of taking the iron, and the line needs to be checked and repaired.
4. Wrong channel. Usually, the sound of the mobile phone navigation software is the default audio output of the mobile phone, resulting in the sound of the car navigation emitted from the mobile phone, the mobile phone navigation can select the media channel.
5. File errors. The car navigation sound file is not installed correctly, resulting in no sound, you need to go to the 4S shop or professional repair shop to refresh the central control system and reinstall the sound file.
It is not necessarily the audio IC chip is broken, the navigator has no sound may be due to a variety of reasons. For example, the volume Settings are not turned on or are set too low, navigation software Settings problems, output problems, software or system failures, etc.
It is recommended to check that the volume Settings, software Settings, connections, and output lines are normal, and try to restart the device or update the software. If the above operations are ineffective, you can consider sending the equipment to a professional for testing and processing.