My dad and I have been trying to figure out which wire on the stock wiring harness does what so we can install the new wiring harness. We plug in the harness to the dash and start testing them but we have only got the fuel Gauge and a dash light to come on. Can't get any signals or other lights to come on. We've done this to two old harnesses and it's the same thing. Does anyone have a working complete harness due a 1972 Maverick? Thanks.
