Another MSD problem

I cant recall, my directions are not near me..but I think I used the feed side of the ballast resistor as the "power on" wire for the MSD. The coil gets juice right from the MSD box, and the box gets juice fromt he (+)POS wire that runs to the battery terminal..The resistor doesnt do anything, as far as I remember once the MSD is wired...If someone has the schematic, feel free to correct me..I haven wired one in a couple years..