there were no variable dash lights on the 46 and earlier [the push/pull switch you have must have been added by a PO], just the 3 way switch under the middle, which the harness you got likely considers a 'rheostat', trace the wires from the harness and one should go to a power source [headlight sw] and the other will go to the dash lights, probably repro harnesses don't consider the ignition sw light, as on later models that is just another of the dash lights and always on with them .... if the added sw is rheostatic, you could add a wire from the 3 way switch to put it in the line to the dash lights
Bill
