harness fire...

one last thing for tonight...

so i noticed while poking around that on the new harness there is a grey wire with a female spade (non insulated) on it by the ignition wires on the passenger side of the harness in the engine bay. I did not know where to terminate this when installing the new harness because there wasnt anything similar on the old one. i wired it up the same way the mallory ignition box was wired before... dunno what this grey wire is for???