bwm schematics

OK.... i have looked at all sorta information about this mod and i started doing in and under my passenger door there is only 1 bundle of wires not 2 like all the post for this year has said the dark brown wire that is there controls the rear running lights and there is no other...

I'm posting for feedback on my plans... I'm pretty sure everything is the way I want it, but hopefully if I fudged up somewhere you guys can call me on it. I'm attaching the plans I drew for what I want to do. The only real question I haven't been able to answer is whether or not I need to...