Toyota specific ignition cutoff sw

Ok, I know this is been done to death, but I'm feeling extra retarded and don't want to screw this up. I have my SW installed, but don't have the proper alternator cut done yet. I have the switch in the Ground wire (and don't plan to change that for various reasons). For the other switch parts, is it the big white wire labelled B+ off the alternator that I need to route through the NC side of the switch, and when the main switch is turned off, that wire goes through the resistor thence to ground? (an on the NC side, the same B+ wire goes through the NC terminals and to the battery). I just want to make sure I use the right wire. There's 3 wires in the plug, plus the bit white "B" wire...


Help?


PS trying to get this done so I can get it on track next month!