How to Fix No Sound Issue in Wuling Hongguang Audio System?

[OJayden]

If the audio system in your Wuling Hongguang has no sound, the first step is to check whether the power supply cable is faulty. It is recommended to promptly visit a 4S shop for professional inspection by technicians. Repairing a car audio system involves not only checking the audio unit itself but also conducting a comprehensive inspection of the vehicle's wiring to eliminate any potential impact from the car's electrical system. Possible causes for car speaker failure: Poor sealing leading to moisture: Although the interior of the speaker is sealed, if the sealing is compromised, moisture may enter during car washing or water vapor may accumulate inside. This moisture can cause the contacts to become damp and malfunction. Poor contact at electromagnetic coil terminals: Some speakers use aluminum rivets to connect the enameled wire terminals of the internal electromagnetic coil instead of secure welding. If the insulation varnish on the wire ends is not properly removed or the rivet connection is loose, it can result in intermittent contact failure, leading to poor speaker performance. This type of fault is due to speaker quality issues and cannot be repaired; only replacement is possible. Contact erosion: Prolonged use of the horn can cause the contacts to erode, creating resistance. This reduces the current flowing through the electromagnetic coil, weakening the electromagnetic force and preventing the armature from driving the diaphragm to vibrate properly. This results in a hoarse sound or complete failure. However, when the horn is pressed continuously, a momentary strong current may still pass through the resistance, allowing intermittent operation, hence the symptom of working sometimes and not others.