What Causes Abnormal Noise in Car Audio?

1 Answers
SpencerDella
07/30/25 4:05am
Abnormal noise in car audio systems often occurs when the amplifier's input signal cable uses shielded wiring, and the cable mesh layer needs to be grounded. The amplifier's power wiring should be connected from back to front, and there should be no grounding (shorting) during the wiring process, as grounding can create eddy current crosstalk, leading to abnormal noise. Below are solutions for car audio noise issues: 1. Amplifier malfunction, possibly due to poor contact (loose connection), causing noise in the car audio. In this case, locate and secure the loose connection. 2. If the speaker quality is subpar, this relates to audio design and installation issues and should be handled by professionals. 3. If the noise increases with engine RPM, it is likely due to grounding issues (caused by ground potential difference). This requires amplifier grounding treatment, a complex process best handled at a repair shop. 4. The most straightforward solution is to install an audio filter, though it may slightly affect sound quality. However, it can completely resolve audio noise issues.
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