Car speakers produce sound by vibrating, or “buzzing,” and when operating properly the buzz in not audible. If the buzzing is elevated to a level where it can be heard, especially over the sound of the stereo, it is usually an indication of damage to the speaker membrane. If the membrane, the paper cone that forms the shape of the speaker, develops a hole or tear it will vibrate excessively, causing an audible buzzing sound. Fixing the buzzing in the speakers in your car can usually be accomplished by repairing the damaged area with rubber cement.
