rcbs204 4x4 Illuminated Switch!

Read the first post.

 

After 8 months sitting in my to-do bin, I finally got around to attempting to put this in. Well past my warranty period.

Putting the board in was pretty easy, where the wires in instructions are soldered, there was a plastic twist-in plug. Since I don’t have solder equip nor very proficient at it I was going to do the other option. So I wanted to keep that little plug to protect the wires from getting chaffed on the metal edges, so I drilled a hole through the middle and have my wires through the plug and the switch parts all back together.

I was a little lost on the instructions after that. It looks like the pins on the attached wires plug straight into the wire plug that goes to the switch. After that, it’s hazy. How then if the wires are into the plug are we connecting to the A/C system for power? Without reading and reviewing 171 pages, Is there another write-up or video that anyone has done to explain that part?
I’m newb to anything electrical, so any help would be appreciated.