I've got to replace the switch on my son's boat. It's pretty much a junker and we simply want to start and stop the engine. I've ordered a 6 wire/terminal switch. Normally it would be a simple parts swap job but this time the switch is not connected and the wires are just hanging loose. To simply start the engine, let it run, then kill the engine which wires do I connect to which posts? The posts are like I-S-M-B-C-M. Which color wires go to which terminals?