So, I did this mod tonight and I feel compelled to make some notes from people like me who happen to be stupid and something I came to understand about this mod.
I was under the impression that the mod provided an additional hot line to the lights and would power them when on. This is not the case. The mod provides an additional ground option for the already hot light current to travel down. (maybe this was evident to everyone else, but not to me lol)
Also, after spending 3 hours working on this mod, I was about to throw up my hands when I re-read something about the step where you switch the pins. Switching the pins switches the grounds. Something I didn't think mattered until I did the mod and it didn't work. Then I realized that if the ground switched, my LED light bulbs would have to be switched because they are polarity sensitive. Sure enough, I wasted 2 extra hours because I had my LED bulbs installed backwards.
So, for those of you who already have LED bulbs and try this mod, don't forget to switch your bulbs to the opposite polarity!