Why is one side of the car audio speaker buzzing?
2 Answers
Regarding the reasons for buzzing in one side of the car audio speaker: Amplifier equipment malfunction: It is likely due to poor contact (loose connection), resulting in buzzing noise in the car audio. The loose connection needs to be located and properly secured. Speaker quality issues: It is necessary to negotiate with the supplier, as this involves the design and installation of the audio system, so it should be handled by professionals. Buzzing affected by throttle: If the buzzing noise increases with the throttle, the main reason is likely a grounding issue (caused by ground potential difference). In this case, the owner needs to perform amplifier grounding treatment.
My old car had the same issue before - the driver's side speaker kept making annoying buzzing noises that gave me a headache. At first I thought the speaker was broken, but after removing the door panel, I found some rust and loose connections at the wiring terminals. I simply sanded the contact points with sandpaper and reconnected the wires tightly, and the noise disappeared immediately. If it's a speaker hardware problem, it's usually caused by a torn cone or deformed voice coil, in which case you'll need to replace it. Also, check if your head unit's amplifier output is stable - some cars with aftermarket subwoofers may experience power mismatch interference. Frequent door openings combined with rainwater seepage can easily corrode wiring harnesses, so I recommend checking connection conditions during annual maintenance to prevent minor issues from becoming major problems.
