65 Satellite tach wiring?

[396 Signet]

My 65 Satellite is coded for a tach but it's missing. Looking at the FSM, wiring from the negative coil goes to the sending unit (assumed to be in console) through a quick connector but is not wired through the bulkhead disconnect. Can anyone tell me how the wiring goes through the firewall? Is the wiring part of the main underhood harness? Pics would be great. Thanks in advance.

 

[moparsteve636]

The tach wire (green) goes thru the firewall to lower right of the heater box!There is a sending unit mounted to the bottom of the console above the tach.The other 3 wires are in the console harness! Hope this helps!