How do you replace a dimmer switch on an Infiniti g20?

To replace a dimmer switch on an Infiniti G20, first disconnect the negative battery terminal to ensure safety. Remove the trim around the dashboard to access the switch, typically by using a flathead screwdriver or trim removal tool. Unscrew the old dimmer switch from its mounting, disconnect the wiring harness, and connect the new switch. Finally, reassemble the dashboard, reconnect the battery, and test the new dimmer switch to ensure it works properly.