Ok. One small item seems to be missing:

where did everyone actually tap the (+)12 VDC from? Directly to the battery (whick it looks like in the video) or did you find another weird fuse for the unused (at least in my limited roadster) terminal in the power distribution box (Fan 50A, Fuse box 200A, Traction/Hydraulics 50A, unused) in front of the battery? That is where I would go...

And where can I source those weird fuses?