So I bought the 7 switch bank (previously had only Traction Control and Bed Light switches. I also bought one of the wires that goes in the connector.
I installed that wire on one of the AUX pins and verified that I have continuity between it and Pin 14 (GND), when the switch is turned on.
HOWEVER, I DO NOT have continuity between Pin 14 (GND) and the frame of the truck!! How am I ever going to energize the coil of a relay if the GND isn't truly the trucks ground?!
Any thoughts? Does anyone know where that ground on Pin 14 is sourced from?