Minus sign plus circle meant that your car went into the repair bay with something wrong or part missing (in the engine area) and was fixed and sent back into the line. there might be a check mark or might not depending on the inspector . normally it was a part missing since the hi-lo drivers always pushed replacing bin's till the last second to maximize their free time.
as for the console wiring I seem to remember it did go to the passengers side Kick panel and up then over plugging into the harness midway in the dash. It's close to the 66 wiring run without the courtesy light.
