Yes it makes it clear on what is what in there, so if it is sparking that means it is hot when I turn the key like it is supposed to. However three things still are not clear, why is the car not starting? Is it the starter not getting a signal due to a bad solenoid, why is it sparking? Why do the yellow wires work when bolted to that solenoid if technically there is no juice that is supposed to run to them while I am driving.

Maybe I am missing what your trying to open my eyes to but there a few little things here that just are not familiar to me.