I have a '73 Barracuda, non-rally dash. New M&H harness. There is a "fasten seat belts" light on the side of the dash bezel, with two wire plug (male) fittings. The only wires that I can find that might fit are both blue, with the female fittings on them. They are loomed together and I am leaning toward this being the right wires, but this was not hooked up on my old harness, so I need some help... Any ideas as to whether or not the two dark blue wires are the right ones for this?