I am still trying to get the lights to work on my speedometer . I have lights on my ammeter and oil gauge, but none to my speedometer. I did as suggested and ran a bare wire on both ends and also a test light, the wires to the speedometer have no power to them, even though the other gauge head does. Is there a wire that connects to the speedometer head? I only have the 3 bulb connections going to the speedometer and they all have no power to them.