Make sure you have the anti-theft code for the audio or the navigation system (if equipped), then write down the audio presets. Make sure the ignition switch is OFF.
Disconnect the 7P connector (A) from the ignition switch (B).
Remove the two screws and the ignition switch.
Install in the reverse order of removal.
After reconnecting the battery, enter the anti-theft code for the audio or the navigation system, then enter the customer's audio presets, and set the clock.