Restoring Rusty

[Gregski]

Guys set me straight here please.

Where does the signal to the voltmeter come from, and what color wire does it travel on?

I know that the oil pressure comes from the oil pressure sending unit via a tan wire, the coolant temp, comes from the coolant temp sensor via a green wire, the fuel level comes from the fuel sending unit via a tan wire. All these wires enter the bulkhead connector and then route directly to the circuit board.