Don,

I ran the single wire (8 gauge) back from the alternator directly to the battery, then I've got the beefy positive cable from the battery through the kill-switch to the rest of the car. This way, when the switch is opened, energy from alternator is cut off from everything but the battery.

Tech, can you comment on this setup. I assumed it was legal and it works like a charm.

My two cents,

Chris