What Causes No Sound from the Rear Speakers of a Civic?

[LeArianna]

The reason for no sound from the rear speakers of a Civic may be due to damage to the speakers themselves or poor contact caused by wiring damage. Contact Point Erosion: Prolonged use of the speakers can easily cause erosion of the contact points, resulting in impedance. Poor Sealing Leading to Moisture: Although the speakers are internally sealed, if the sealing is not tight, moisture can enter during car washing or water vapor in the internal space can cause the contact points to become damp, preventing normal operation. Poor Contact at Electromagnetic Coil Terminals: Some speakers have electromagnetic coil terminals connected with aluminum metal rivets instead of secure welding. If the insulation paint on the enameled wire ends is not properly removed or the rivets are not tightly crimped, it can easily lead to poor contact, causing the speakers to malfunction.