65 Mustang Alt Lamp Wiring

[mygt350]

Looking for help getting Alternator lamp to light up when key is on. Schematics I see show short wire with bullet connector from ignition to the pink "resistor wire" which is consistent with the wiring in the car. However, schematic also shows a black/green wire gong to the charge (alt) lamp. But both harnesses I am looking at, pink resistor wire connects to pigtail off ignition and routes to firewall. Where do the alt lamp wires actually connect to?
Thanks
http://averagejoerestoration.com/resources/mustang-wiring-and-vacuum-diagrams/1965-mustang-wiring-diagrams/1965c.jpg

Find ignition switch and trace wire 16 (red/green) from back of switch to the bullet connector that transitions to 16A (pink resistor wire). At that bullet connector, appears there is a black/green wire (30) that runs to the alt lamp. From lamp, turns into 904 (green/red) to main block and on to the regulator. Have 2 harnesses and see the black/green (30) and green/red (904) going to the charge/alt lamp in cluster. If 30 doesn't connect to back of ignition switch, where does it connect?