I can't believe this -- I mean it is no one's fault here, of course, I just can't believe turning this back light on is so annoyingly complicated.
Thought this was going to take five minutes.
I think I'll just start playing with the wires; if I fry it, it doesn't matter because if it isn't going to work, it goes to the e-waste recycle bin and I will build one with milk glass and LEDs (all of which I have already for something else, including a PSU).
Thank You Guys!