There are any noise sources in a car audio setup. In this article, I'll talk about one where your car speakers furnish noise that seems to growth when you "rev" the engine. You'll get to learn how to eliminate that annoying noise and enjoy your music.
First, you must understand that this is naturally interference or induced noise. Induced noise can sound like clicking, popping, whirring, buzzing, whistling, or whining. This noise all the time has a source such as the alternator, car power wiring, amplifier, etc. So this means that the question can be tackled at the source. Now, you just have to find it.
Power line noise problems (such as those from alternators) can be fixed by adding a capacitor or power line filter to the live source of the presume component.
Another area to research is the earth, also known as ground wire, to the rear of the radio or head unit. Try running a new earth or ground wire from the rear of the radio to a new position (earth) on the car's chassis, replacing the existing earth wire.
If you have installed an amplifier, ensure that the Rca cables running from the head unit to the amplifier are of good quality. Also make sure they are run along the car away from the car's existing wiring and away from the amplifier's power cable. For the sake of testing, try running the Rca lead loosely in the middle of the head unit and the amplifier without positively running them under the carpet. "Rev" your motor with the radio on low volume and see if the noise is gone.
If you still have the noise, consult a car audio expert. There are a few things in car audio that require scholar assessment. There could be a combination issue. A good car audio scholar is best equipped to diagnose the problem.
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