Wassup guys, I have an Autometer Carbon fiber series Guage. Its always been in the car just not hooked up. Anyways, Theres only 3 wires, Ground, light, and a light blue one... When I first bought the guage I dont remember a sending unit? I'm thinking since its elctric maybe I just tap a wire somewhere??? I searched and found no 100% answer. TIA

EJay

 

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