For 1990-2009 cars

### Removal Procedure

1. Remove the rear seat to rear window trim panel. Refer to Rear Window Trim Panel Replacement in Body Rear End.
2. Disconnect the two wiring harness connectors from the radio signal processor.
3. Remove the radio speaker amplifier bracket bolts from the rear seat to rear window trim panel.
4. Lower the amplifier bracket from the rear parcel shelf.
5. Remove the two processor bolts.
6. Remove the processor from the amplifier bracket.

### Installation Procedure

1. Install the processor into the amplifier bracket.
2. Install the two processor bolts until fully seated and not stripped.
3. Raise the amplifier bracket into the mounting position.
4. Install the amplifier bracket bolts at the rear seat to rear window trim panel until fully seated and not stripped.
5. Connect the two wiring harness connectors.
6. Install the rear seat to rear window trim panel. Refer to Rear Window Trim Panel Replacement in Body Rear End.