How do you replace ignition switch 1991 Mazda Miata?

To replace the ignition switch on a 1991 Mazda Miata, start by disconnecting the negative battery cable to ensure safety. Remove the steering column covers by unscrewing the screws and gently prying them apart. Then, disconnect the wiring harness from the old ignition switch, remove any mounting screws, and take out the switch. Install the new ignition switch by reversing the steps: secure it in place, reconnect the wiring harness, and reattach the steering column covers. Finally, reconnect the battery and test the ignition.