I installed a tachometer on a 1983 mercury 50 hp years ago...... and a want to install one on a 60 hp mercury I put together this summer...the question I have is when I put it on the 50.hp there was a wiring harness that just plugged into the forward controls ( forward,reverse, shift lever key) is that harness still available and does anyone know the part number.............. thanks [h=2][/h]