So chasing some wiring gremlins from and older wiring hack job. Ended up ripping out the complete under dash harness to replace it. Quick question though. there is a 2 wire with male/female connectors running to the automatic shifter. i know it is for the light on the shifter. wiring diagram shows 1 wire and just grounding by the shifter. my guess is the second wire is a ground. but looking for advice from wiring gurus. these wires were not connected in my mess, so no frame of reference. appreciate any help.