I have never liked running my alternator cable all the way to the back of the car, so I do something different than most people. I purchased a flaming river 4 post kill switch and I use the small terminals to interupt the small red MSD ignition trigger. Basically, there is a ignition 12v that goes from your ignition switch to the MSD to turn it on. Well, I simply route that wire from the ignition switch, through the battery on off switch (small terminals) and then back to the MSD. When someone flips the switch at the back; its as if someone turned your key off and disconnected the battery at the same time. As for the Alternator wire, I have always run that wire to the battery cable lug on the starter.