intermittant wipers for 2000 Tacoma 4X2

Just bought a 2000 Tacoma 4x2 Pickup for my son and it doesn't have intermittant wipers.
Live in Oregon, and yes we get our fair share of rain.
Can you just put a switch that has the intermittant wipers and plug it in on the steering column or do you have to have relays, modules, wiring , connections...etc installed also?
Any help or advice on how to make this happen or what to be aware of before I just go out and pay $$ for a switch at the dealer or a Wrecking Yard?

Thanks, Marty

 

I remember seeing on this forum that all you need to do is change the stalk. All the controlls are built into it.
Same goes for cruise control on auto trans. Manual needs a clutch switch.

Disconnect the battery 15 min before you work near the airbag.