I have an 87, so I don't knowifit will be the same wire, but.... The yellow wire was keyed 12 volts, though of a smaller diameter than the hei wire needed to run the dizzy. I ran that to a relay and wired directly to the battery for hot, then from the relay to the dizzy. Starts and turns off by key, the yellow wire only trips the relay, the power comes right from the battery.
'80 CJ 5 w/360
87 Wangler build in progress 350, 350, np205, 5.38 gears, soa,d60/14 bolt,accepting donations for wheels and tires(just kidding)
2000 Grand Cherokee LTD w/4.7
Do they have AA for Jeeps?