For 1990-2009 cars

### Removal Procedure

Warning: Refer to Battery Disconnect Warning in the Preface section.

1. Disconnect the negative battery cable.
2. Using a taped flat-bladed tool, gently pry and remove the audio system trim plate.
3. Remove the screws and the audio system.
4. Disconnect the audio system electrical connectors.

### Installation Procedure

1. Connect the audio system electrical connectors.

Caution: Refer to Fastener Caution in the Preface section.

2. Install the audio system with the screws and tighten to 4 N·m (35 lb in).
3. Install the audio system trim plate.
4. Connect the negative battery cable.
5. Enter the audio security system 4-digit code. Refer to Radio/Audio System Description and Operation.