I am repairing my original wire harness (68 barracuda). A little background. Wiring diagram shows 6 prongs on my ignition, mine only has 5? While restoring my harness I came across a purple with white trace wire heading to slot D on my instrument harness connector, as well as a blue with white trace wire heading through firewall to ignition coil resistor both spliced into IGN. 1 on my ignition switch. A previous owner spliced into the purple and white wire with a black wire, (about a foot long) with a ring connector on the end. Would anyone know why previous owner would have done this? Where would you suppose it went to? I think it is a live 12v wire so not a ground?? I took a couple of pictures.