I HAVE A 1964 18' GRADY WHITE WHEN I GOT IT ,IT HAD AN 80 HP EVENRUDE WHEN IT DIED I GOT A NEWER EVINRUDE SUPER V 4 MODEL #J5115MLCSA SERIAL #j5330646 BUT THE GUY THAT INSTALLED THE ENG. SHIFT, AND INGNITION, CUT ALL THE OLD WIRES OUT SO NOW I HAVE NO AMP GAUGE THAT IS CONNECTED TO ANYTHING. I...