For 1990-2009 cars

### Removal Procedure

1. Turn on the radio and record all of the customers radio station presets.
2. Ensure that all lamps and accessories are turned off.
3. Turn the ignition OFF and remove the ignition key.

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

4. Loosen the negative battery cable nut (2).
5. Remove the negative battery cable (1) from the battery.

### Installation Procedure

1. Install the negative battery cable (1) to the battery.

Caution: Refer to Fastener Caution in the Preface section.

2. Fastener the negative battery cable nut (2) and tighten the nut to 10 N·m (89 lb in).
3. Insert the ignition key and turn the ignition to the ON position.
4. Program all of the customer's radio station presets and set the radio clock to the current time.