Car Speakers Emitting High Pitched Sound [SOLVED]

Do you have a problem with your car speakers emitting a high-pitched sound? If so, don’t worry – you’re not alone.

Many people are experiencing this issue, and we have the solution.

car speakers making screeching noise

In this blog post, we will discuss what might be causing the problem and how to fix it.

We will also provide some tips on how to avoid annoying car speaker noises in the future. Keep reading!

Reasons Behind Car Speakers Making High-Pitched Noise

The screeching noise that you hear in your car speakers is probably happening because of electric interference in the speaker wires.

When the power cable gets close to the speaker wire, it can create a current that causes the speaker to emit a high-pitched sound.

This is most likely to happen if you have aftermarket car speakers installed, as they are not always properly shielded against electrical interference.

Even if your car came with factory-installed speakers, though, it’s still possible for this issue to arise.

It’s popularly known as Alternator Whine as this thing aggravates when the alternator runs at its high capacity.

You can know whether this is the cause by simply accelerating the car and decelerating it. If the sound increases while accelerating and decrease when you slow down, Alternator Whine is the culprit.

How to Stop Car Speakers From Making High-Pitched Sound?

If you’re experiencing this problem, there are a few things that you can do to try and fix it.

Check All the Ground Connections

All the ground connections from your stereo system should be checked as the first step.

This includes the negative terminal of the battery, any chassis grounding points, and the ground wire from your amplifier (if you have one).

Make sure that all of these connections are clean and tight. If they’re not, that could be causing the electrical interference in your speaker wires.

Re-route the Speaker Wires

Another potential solution is to re-route the speaker wires away from the power cable.

This can be done by running the wires along a different section of the car, or by taping them to another part of the vehicle so that they’re not close to the power cable.

You may also want to try using shielded speaker wire, as this can help to reduce electrical interference.

Install a Noise Suppressor

If you’re still having trouble with your car speakers making high-pitched noise, you may want to install a noise suppressor.

This device helps to cancel out electrical interference, and it can be found at most electronics stores.

Just make sure that you get one that’s designed for use in a car audio system.

While people know them as noise suppressors, they are actually ground loop isolators. They’ll separate the interfering noise from your main sound and absorb that so that you only hear the things you want to listen to.

Using Twisted Pair Cable instead of Coaxial Cable Helps

If you’re running into interference issues even with a noise suppressor installed, you may want to try using a twisted pair cable instead of a coaxial cable.

A twisted pair cable is less susceptible to electrical interference, so it can help to reduce the screeching sound in your car speakers.

You can find this type of cable at most electronics stores.

Check Amplifier Cables and Connections

If you have an amplifier in your car audio system, you’ll want to make sure that the cables and connections are all secure.

Loose or damaged cables can cause electrical interference, which can lead to the high-pitched noise in your speakers.

Tighten any loose connections and replace any damaged cables.

Sometimes, people mismatch the connectors and cables causing this kind of issue. Check if all the cables and connectors are in the right place.

Fix the Antenna

If you experience the high-pitched sound only when you listen to the radio, the problem might be with your antenna.

A loose or damaged antenna can cause electrical interference, which can lead to the high-pitched noise in your speakers.

Tighten any loose connections and replace any damaged cables. Plus, antenna quality plays a crucial role in sound quality.

Make sure to pick up the best quality antenna for your car to avoid irritating issues like this.

Replace or Repair the Speakers

If you’ve tried all of the above solutions and you’re still hearing the high-pitched sound, your speakers may be going bad.

Over time, speakers can develop problems that cause them to make unwanted noise.

If this is the case, you’ll need to replace the affected speakers.

You can try testing each speaker to see if the noise is coming from one particular speaker or if it’s coming from all of them.

If the noise is coming from only one speaker, that’s a pretty good indication that the speaker itself is bad and will need to be replaced.

If you’re hearing the noise from all of your speakers, then it’s likely that the problem is with your amplifier or head unit.

In this case, you’ll need to take your car to a professional to have the problem diagnosed and repaired.

To Conclude

There are several things you can do to fix the high-pitched sound coming from your car speakers.

Some of these solutions include re-routing the speaker wires, installing a noise suppressor, using a twisted pair cable instead of a coaxial cable, and checking amplifier cables and connections.

If none of these solutions work, you may need to replace or repair your speakers.

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