9 Reasons Why Car Speakers Cut Out Randomly


Imagine being on a road trip or on the way to one of your favorite far-away destinations, and your car speakers start buzzing, rattling, or hizzing.

Problematic speakers and distorted sound coming from your car speakers is the last thing those road warriors who love to listen to their favorite tunes while driving wants to experience.

In the worst-case scenario, car speakers may stop working while drivers are midway between vacations, getaways, or even while driving to everyday activities like work or school.

Below we talk about nine reasons car speakers cut out randomly while driving. Later we provide a few quick tips and tricks on how to solve the problem.

9 Reasons Why Car Your Speakers Cut Out Randomly

#1. Dirty Volume Knobs

Dirty volume knobs can cause car speakers to cut out because they block the sound waves from entering and exiting the speaker. When this happens, the speaker cannot produce an adequate sound level and will eventually fail.

#2. Corroded Cables and Wires

Corroded cables and wires can cause car speakers to cut out for various reasons, including corrosion of the metal connectors that connect the speaker wire to the amplifier.

This corroded connection causes interference and noise in the audio signal, affecting your car's ability to reproduce sound correctly.

Sometimes, this interference may be enough to damage your car's speakers.

#3. Weak or Failing Car Battery

One common issue that can cause car speakers to cut out is a weak or failing battery. When the battery goes down, it cuts off power to the car's audio system. This can happen for various reasons, including old age, water damage, and flat batteries.

Suppose your car speakers are cutting out more often than usual. In that case, it may be helpful to have them checked out by a professional.

#4. Bluetooth Connection

If you experience frequent car speakers cutting out, it may be due to a weak Bluetooth connection.

Cars are often equipped with Bluetooth technology to stream music from your device or hands-free calling wirelessly. However, if the Bluetooth signal is too weak, it can cause the car speaker to cut out.

To check whether your Bluetooth connection is strong enough, try using an app that tracks radio frequency signals and provides feedback on the signal's strength.

#5. Loose Speaker Wires

Loose speaker wires can cause car speakers to cut out due to a lack of electrical connection. When the wire becomes disconnected, it causes friction and wears on the electrical contacts inside the speaker.

Over time, this will eventually damage or impair the function of the speaker. To prevent this from happening, ensure your cables are securely tucked away and covered when not in use. Try using cable ties or zip ties to keep them tight against each other.

#6. Speaker Wires Inverted

Inverted speaker wires can cause car speakers to cut out because they are trying to receive electrical signals from the wrong direction.

When installing new car audio, connecting the positive (red) and negative (black) wires of your car's speaker system are essential.

This will ensure that the audio signal travels through the wire properly and doesn't get mixed up with other electronic components in your vehicle.

If you have inverted speaker wires, the red and black wires will come into contact inside your trunk or undercarriage.

This can disrupt the flow of electricity and ultimately lead to cuts in sound quality for your stereo speakers. To fix this problem, consult a qualified technician who can safely re-connect your speaker cables so that all sounds are correctly transmitted.

#7. Broken Speaker Wire

The sound quality can deteriorate dramatically when broken speaker wires affect car speakers. This is because when the wire breaks, it causes an electric current to flow indiscriminately through both the speaker and plug-in microphone.

This interference can cause distortion and muffled sounds, making it difficult for drivers to understand what's being said on their radios or TVs.

If your car's speakers frequently fail due to broken wires, replace them as soon as possible. Ideally, it would be best to do this before they fail and produce no sound.

When replacing your car stereo system or speakers, consult a professional installer who will know how to install new wiring correctly so there is minimal chance of further noise issues.

#8. Improper Installation - When Speaker Wires Touch

Speaker wires touching can cause car speakers to cut out because the metal contact causes a short circuit. When this happens, the current flowing through the speaker wire becomes too high and destroys its insulation.

This problem is most likely to occur when car speakers are installed in tight spaces or near other electrical devices that may also be generating strong currents.

To prevent this from happening, keep your speaker wires as far away from each other as possible and make sure they are correctly connected by using connector cables or wiring diagrams.

#9. Damaged Speaker Coil

A damaged speaker coil can cause car speakers to cut out because the electrical signal is not transmitted correctly.

When this happens, the speakers may produce a high-pitched squeal or crackling sound.

To prevent this from happening, you should inspect your speaker coils regularly and replace them if necessary. Additionally, ensure that there is enough wire insulation between each of the wires and the speaker's frame (or use shielded cables).