Prius 2012+ Fog light diagram/schematics?

I ordered a set of "plug in play" fog lights for my 2012 prius and did the install today. When i went to wire everything up there was no illumination on the switch nor power to the fog lights.

The kit required me to run two (2) wires into the engine bay. One (1) red and one (1) grey. Does anyone know what these wire are for? They each have a constant 12v.

The relay that came with the kit gets triggered by a ground signal which then steps down the 12volts on the red wire to 6volts which then triggers the fog lights to turn on.

No idea of the pinout/schematic for the illumination switch. There is a red, black, black and grey wire. Does anyone know? Or a schematic overall for this kit?

I can wire the fog lights up to be triggered with the parking lights using a relay but I am only using one of the two wires that I pulled into the engine bay, red, and I am using no switch.

Any and all help is appreciated.

The fog light kit is from toyota. Link: http://cdn.shopify.com/s/files/1/0176/5842/files/00016-47660.pdf?479