Why does the car navigation all-in-one machine make a buzzing sound?

1 Answers
SanMia
07/29/25 9:59pm
Car navigation all-in-one machine buzzing sound is caused by the poor grounding of the navigation system, which introduces external interference into the circuit of the navigation system. If the noise is in the line connection part, it is necessary to strengthen the shielding of the audio line, including replacing the speaker line, and the line routing should also avoid interference sources to prevent obvious current noise. It is recommended to go to a 4S shop for repair. Precautions for car navigation all-in-one machine: 1. When not in use, try to store it in a dry place; 2. Portable navigation should not be placed in the sun for a long time, as large temperature differences not only affect the battery life of the navigation but also the touch sensitivity of the LCD screen.
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