How to Fix Car Speakers Crackling In 10 Easy Ways

Well, Car speakers can crackle due to many reasons. One of the most common issues seen is that the voice coils that may have been damaged due to some reasons are coming in contact with the magnet, which gives rise to crackling noises.

This hampers the listeners’ mood when they enjoy a song on the highway or when struck in a traffic jam.

That’s why you must learn how to fix car speakers crackling on your own, so that you don’t get stuck in the middle of nowhere.

Many may not know but, the crackling can damage the car speakers only when exposed to a long time of hearing or when the speaker is being pushed to its limits. This causes the drivers inside it to start heating and behave abnormally, which can add to the crackling problem and damage your speakers. 

How to fix car speakers crackling

However, car speakers tend to last when proper care is taken of them as is required. These last anywhere from 10 to 15 years of appropriate usage.

Several factors, such as manufacturer, make, quality of materials, and the capacity of magnetic coils and drivers, determine the expected life of speakers.


How To fix car speakers crackling? (The Right Ways)

Sound systems do not come cheap when installed in a car. They come with heavy drivers and amplifiers that try to deliver the best audio experience while driving or when enjoying with a group of friends or family.

How do you fix car speakers crackling?

Disturbances and inexperience are least expected when you have sound speaker systems, and yet the most common issue that pops out is crackling sounds. Faulty wiring and connections may be the primary reason, but there are some other vital areas where you can keep a check to understand whether there is legitimate damage or not.

This knowledge will allow you to know how to fix car speakers crackling. Some of these are described below:

Check the Speaker Cables Connection from the amplifier/radio

Turning off the speaker first, you can speculate the speaker cords and wirings from the dashboard. The wires may have been damaged when kept unmoved for a prolonged time.

The wires become damaged in the confined spaces of the dashboard when they aren’t changed for a long time. Cables from the amplifier or radio also need to be checked thoroughly as the harnesses do not get easily damaged. Wiring from the back deck may be at fault sometimes, which affects the connectors giving birth to crackling.

Switch off any nearby electronic devices

Electronic devices transmit electromagnetic waves, which speakers pick up. Mobile phones emit signals at gigahertz frequencies which gets in the way of a dynamic output system of speakers, which results in crackling. It is suggested to remove these kinds of barriers while inspecting faults.

Move the speaker wires away from any electrical cords

First and foremost, you must move the speaker wires away from the electrical wires at a minimum distance of at least 6 inches. If you want to cross them, you can cross them at ninety degrees or keep them in a parallel position to minimize Interference.

The power supply and base wiring are the keys to maintaining speakers intact. There should always be a considerable distance between them to avoid internal damage to the amplifiers or dynamic regulators.

Set the Bass as per Volume Settings

The maximum output produced by a speaker is not something you should test in a closed environment within the confined doors of a car. Malfunctioning of the speaker is primarily caused due to unwanted changes in sound settings.

Exposure to bass for a continuous time can even affect health. The vibrations of the bass can be reduced by minimizing the bass at high volume and increasing it at low volume. These settings can be made through the equalizer and help prevent crackling.

Use High Pass filters for all car speakers

Audio high-pass filters can be found in the equalizer. It is a tool to lessen the frequencies below a predetermined set point.

Using a high pass filter for car speakers can allow high frequencies to pass through the filter, which can help to reduce the amount of pressure on the equalizer, thus minimizing one more aspect where a speaker can most likely produce crackling noises. 

Avoid Bass Boosted Music

Bass-boosted music often creates distortions within the speaker system and creates additional problems. You may hear crackling noises even when the bass is controlled. This happens because sometimes you are likely to listen to bass-boosted music caused by the speech coil getting in contact with the magnet. 

These types of music are mainly an overload to the speaker as the bass doesn’t reach outside, thus hampering the parts inside the dashboard. 

Install a noise filter

A noise filter is a particular device that is set up between your set of speakers and stereo. It disposes of engine and background noises so that the speakers have crystal clear output. The technology behind it allows only currents of low frequencies to pass through, thus eliminating the typical buzzing noises from a high-frequency output.

The excess amount of energy is transferred to ground wires to prevent speakers. 

Check the alternator and car battery

Crackling sound from the speakers can be quite troublesome when it is not dealt with properly. The sound may also arise from other problems in your car. For example, an alternator with clicking sounds indicates a problem with its starter coil where adequate power is missing to crank up the engine.

It is entirely different from crackling noises in the speaker system. So, you need to carefully scrutinize the nature of the sound coming from your car and identify the real problem at hand. 

Disable the Auto-On Settings

Most amplifiers or subwoofers have an automatic on or standby feature available in almost all music systems. The amplifier, upon the detection of a signal, will automatically turn on the speaker system, and this uncontrolled trick may even create some unwanted problems.

The expected output of a subwoofer amplifier may not always match the available power supply. Disabling this feature can reduce the chances of overuse of power when it retrieves any signal. 

How do you fix car speakers crackling?


Electrical fields present within the speakers generally catch static arising from car speakers. In this context, a ground loop happens when the same power source is used to boot both the audio source and the speakers. Installing a ground loop isolator will eliminate any unnecessary humming noises from an alternator. 

How to Fix Wireless Interference?

Wireless Interference is also a potential reason behind crackling noises in speakers. The interferences may be primarily of two types, where the most prominent types are proper placement of Wi-Fi-enabled audio devices or protection of subwoofer from potential Interference.

Electromagnetic waves and signals are generally present in all modern devices, but you should also consider their drawbacks. Filtering through unwanted signals is one of the common practices to remove bad signals from entering the powered circuits.

Subwoofers have an AC line that opens paths to find new signals and conduct electrical functions. With the help of digitalized connections, analogue converters may be used to interchange the humming noise from speakers into quality audio.

Wi-Fi-enabled audio devices must be kept in such a position that ground noises do not catch up to them and create distortions.

Frequently Asked Questions (FAQs)

1. How do you fix old car crackling speakers?

Old cars have pretty old wirings, so the first job is to check whether they are passing proper amounts of power supply or not. Speakers inside them need to be checked whether there have been any wirings that have continuously made contact with magnetic coils. Placing them at a good distance will solve crackling noises.

2. How do you know if your car speakers are blown out?

Failure of speakers is also referred to as blowing out. Reduction in sound quality, emission of noises from drivers, mechanical failures, prolonged use of speakers at a high volume, Distortions, and lack of adjustments such as a change in bass or treble are some of the inspectional methods by which you can determine whether your speakers have blown out or not.

3. Can a blown speaker be repaired?

Yes, you can fix a blown speaker. You can carefully divide all the spare parts, repair a blown-out space in the speaker with adhesives or tapes, and then reassemble it again to make it last a little longer.

4. Are speakers worth repairing?

Outweighing the price of the speakers while repairing them is the worst choice one can make. If the speaker is branded and ensures good quality over an extended period, it is worth repairing than buying a new one.


All the factors, issues, solutions, and suggestions should be kept in mind while dealing with speakers that produce crackling noises. It is advised to consider the necessary aspects before repairing a speaker. The problems so discussed can be resolved while keeping these technicalities in mind.

It would be best if you learn how to fix car speakers crackling rightly while taking proper measures to reduce the noises beforehand with the help of the methods mentioned above.

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