Which model Honda are we talking about here? Some of the Ridgeline trims have come with that since at least 15 that I am aware of. You may have the wiring already in place, and just need to install the proper hardware.
I drive a real truck, and my trim package wouldn't have that prewired in the harness. I looked it up. Thanks for the input though!
E: upon further reflection, the Honda was the brand generator, I only mentioned it to highlight the absurdity of my actions as it is not a cheap generator.