You literally remove two screws, remove an interior trim panel, unplug an electrical connection, and plug it back in. Reinstall the panel, then reinstall the screws.

The hardest part is 'seeing' the connection as it is tucked up behind your throttle pedal. If you have overly large hands, or if you are a large guy, you may have trouble maneuvering down there.

I bought mine used from someone who traded their car in. But it can be bought one bay.

Do a search or click the link in my signature.