What Causes the Buzzing Sound in the Envision?

[StAdriana]

Reasons for the buzzing sound in the Envision: Gaps or misalignment in wiring: Gaps, misalignment, or displacement between leather, plastic, and wiring components, especially after exposure to intense sunlight, can easily lead to this issue. This causes the vehicle to produce abnormal noises when driving on bumpy roads due to loose parts being squeezed. Generally, identifying the source of the noise and using materials like paper towels or rubber as spacers can help block the noise. Abnormal noise from the car audio system: This is typically caused by collisions between the car audio amplifier and other vehicle components. Tightening the screws to secure the amplifier, CD player, etc., can usually resolve this issue. Electrical current noise inside the car: This noise is usually more noticeable when the car is first started, especially during cold starts when audio, air conditioning, wipers, and other devices automatically turn on. The noise will naturally disappear once the engine warms up or after driving for a while when the system stabilizes.