* Air leaks. If there are any holes or cracks in the speaker cone, air can leak out and cause a whistling sound. This is especially common in old or damaged speakers.
* Voice coil rubbing. The voice coil is a part of the speaker that moves back and forth to create sound. If the voice coil is rubbing against the magnet, it can cause a whistling sound. This is often caused by a damaged speaker cone or a misaligned voice coil.
* Overdriven amplifier. If the amplifier is sending too much power to the speakers, it can cause them to overdrive and produce a whistling sound. This is more common with cheap or low-quality amplifiers.
If you are experiencing a whistling sound from your car speakers, it is important to identify the cause so that you can take steps to fix it. If the problem is caused by air leaks or voice coil rubbing, you will need to repair or replace the speakers. If the problem is caused by an overdriven amplifier, you will need to reduce the power that the amplifier is sending to the speakers.
