Adding Fog Lights to SR?

Anybody given this a try and have details to share? Wondering if they might be prewired from the factory…

 

I think your best option would be to run your own wiring, relay, and switch.
The fog light circuit in a Gen 3 2022 and ^ is very complex.
It is not as simple as in the previous year Tundras..

Ultimate TUNDRA Wiring Diagrams Collection | Toyota Tundra Forum

Pull up the 2022 System Circuits in the link above.
Search for fog, and you'll see the 11 pages of the circuit and connectors..

As well, I don't know about the Gen 3s, but the SR models of early Tundras did not have the wiring for fogs, intermittent wipers, and some other options.

Welcome to the forum..