OK, so I am still trying to get this darn '83 K5 w/350 running. It has an HEI distributor on it. I basically figured it was the actually distributor since I have 12V goind into the cap, new cap, rotor, coil, ignition module, but no spark. I bought an HEI off of JK5 here on the forum. I was about to put it in when I saw that there was a wire spliced into the 12v connector and it uns to a connector, but isn't plugged into anything. What is it?