COUPE. Insulator. LEFT SIDE TRIM. A sound barrier that is placed between the sheet metal and the Interior Quarter Panel Trim Panel. Provides a noise and vibration damper to the quarter Panel structure. Sound Absorber. Trunk Trim Panel Insulator. Barrier. Damper. DAMPING. Interior Quarter Panel Trim Panel Insulator. Quarter Panel Insulator. Rear insulator. Sound Absorber. Trunk side trim insert. Trunk Trim Panel Insulator. Wedge.