Is there a two wire ground, single connector, attached to the back of the Instrument Cluster case on the back of the case behind the low fuel light? There appears to be a small screw where it could be connected. I have a 1970 Eliminator. I attached the two wire ground to the lower section of the dash but I'm thinking that may be incorrect as my low fuel light, fuel gauge and dash lights aren't working. Oil pressure, engine temperature, speedometer and tach are all working. Can anyone confirm that the small screw is the proper location to attach the two wire ground?