For 1990-2009 cars

### Removal Procedure

1. Remove the rear seat back. Refer to Seat Back Replacement -- Rear (Premium) .
2. Lift the rear compartment front interior trim.
3. Remove the sound barrier (1) to the wheelhouse panel.

### Installation Procedure

1. Position the sound barrier (1) to the wheelhouse panel under the rear compartment front interior trim.
2. Install the rear seat back. Refer to Seat Back Replacement -- Rear (Premium) .