For 1990-2009 cars

### Removal Procedure

1. Remove the rear window trim panel. Refer to Rear Window Trim Panel Replacement in Body Rear End.
2. Remove the amplifier bracket screws from the rear parcel shelf.
3. Open the rear compartment lid.
4. Disengage the locator tabs (1, 2) on the amplifier bracket from the rear parcel shelf.
5. Lower the amplifier bracket (7) from the rear parcel shelf.
6. Remove the screws (3) from the radio signal processor module (5).
7. Remove the radio signal processor module (5) from the amplifier bracket (7).
8. Disconnect the two wiring harness connectors (4) from the radio signal processor module (5).

### Installation Procedure

1. Connect the two wiring harness connectors (4) to the radio signal processor module (5).
2. Install the radio signal processor module (5) into the amplifier bracket (7).

Notice: Use the correct fastener in the correct location. Replacement fasteners must be the correct part number for that application. Fasteners requiring replacement or fasteners requiring the use of thread locking compound or sealant are identified in the service procedure. Do not use paints, lubricants, or corrosion inhibitors on fasteners or fastener joint surfaces unless specified. These coatings affect fastener torque and joint clamping force and may damage the fastener. Use the correct tightening sequence and specifications when installing fasteners in order to avoid damage to parts and systems.

3. Install the screws (3) to the processor module (5).

Tighten
Tighten the screws to 2.5 N·m (22 lb in).

4. Install the amplifier bracket to the rear parcel shelf engaging the locator tabs (1, 2).
5. Install the amplifier bracket screws to the rear parcel shelf.

Tighten
Tighten the screws to 2 N·m (18 lb in).

6. Install the trim panel that covers the rear seat to the rear window. Refer to Rear Window Trim Panel Replacement in Body Rear End.
7. Close the rear compartment lid.