How to Troubleshooting a Stereo Speaker?

Stereo speakers are probably a part of the car that many owners often pay least attention. However, they play an essential role in the overall experience of owning a car as well as enjoyment on the road. If the best 6×8 speakers in your car are not operating properly, then you will not be able to hear your favorite songs on the stereo, which can make your drive very long and boring. When the stereo speaker of your vehicle does not work, there are a couple of methods to troubleshoot it for replacement or repairs.

  1. Check the wires on your car’ speaker

Apart from the wires in the stereo, the wiring connection of the speaker in your vehicle might be a little loose. Therefore, you should remove the speakers from the housing and ensure that the wires are tight in the connecting nuts as well as correctly connected.

  1. Check the wires from your stereo

There are some cases when the speakers in your car would work, but they cut out between dead silence, static, or playing music. When this occurs, the issue is often going to come from the wiring.

In this case, the first part that you need to check out is the wiring connection in the stereo speakers of your car. In general, the wiring harness might have worked loosely, which leads to a minor disconnection between the stereo and the speaker.

  1. Loose speakers 

A speaker which is not tightened securely to the housing will sound horrible and vibrate. The buzzing noises that are the results of the vibration in your speaker would interfere greatly with these sounds. To void this, you should use small rubber shims, or some cloth around the housing right before the installation of the speakers and ensure that the screws are properly tightened.

  1. Trace the route of wire

If the connection at the speakers and stereo are without any types of corrosion and tight, then you would have to trace the whole route of the wires to check for break or shorts in the wire. In most cases, the wires will be broken after a couple of years when they are placed under the rugs on the ground. Grit and sand act as the abrasive elements to the wires and cause cuts that result in disconnections and shorts.

  1. Blown speaker

Blowing at high level is probably one of the worst issues with a stereo speaker in cars. In these cases, it means that the cone would be broken from the coil due to the music’s force. You might notice a distinct buzzing noise when the music level is high and almost nothing at a low level.

You should measure the Ohms and test the speaker with a multimeter. Put the leads on the terminal. If the reading is not 1.0, then your car speaker would be blown and require a replacement.

  1. Weak sound

If you new speakers do not sound as the expected full potential, there would be an issue of compatibility. When the speaker could not deal with the wattage output in the stereo, it would lead to internal issues in the speaker, which would lower the quality of the sound. Another problem would be the reverse. When the speakers are too powerful for your stereo, the music quality would be muffled.

  1. Touching ground

All of the speakers in your car must be grounded. However, if these parts are touching ground, they would produce a thumping sound. Therefore, you should check the wires to ensure that they are grounded properly and do not crossing, or touching the ground of other wires.

My name is John Henry, founder of – blog about automotive industry. With 20 years experience in repairing, troubleshooting and maintaining thousands of cars, I create this blog to share my knowledge as well as skills with car owners all around the world. Hope you like it.