I HAVE A 1999 OX66 2 STROKE. I HAVE A 6Y5-8350T -90 TACH. I HAVE 1 PLUG LEADING FROM THE GAUGE FOR THE TRIM TILT,OIL TANK CAPACITY AND TEMP STATUS. I HAVE 1 HARNESS WITH A SINGLE 4 WIRE PLUG ON EACH END GOING FROM GAUGE TO ENGINE.THIS HARNESS WAS ORDERED WITH THE TACH. I NEVER HAD THE ORIGINAL...