Just discussed this last week
Do an archive search on wiring harness. Try this: http://archives.sailboatowners.com/pviewarch.htm?fno=20&sku=2005324114936.92&id=366379&ptl=#2005325085349.26Unless the wiring is hard wired AT BOTH ENDS, you have a potential problem with the engine starting all by itself!Plus, if you still have the ammeter, with a diesel, you're sending the current to heat the glow plugs all the way to the cockpit panel.