I recently re-powered my boat, it had a 1995 Yamaha 2 stroke and I installed a 2008 Yamaha F60TLR 4 stroke. Using the existing wire harness I plugged in everything that had a compatible plug and the motor fired right up. At this point the motor runs, but has no overheat/oil pressure alarms, hour meter or trim indicator. So I bought the command link multi function tach kit #6Y8-0E83R-81-00 http://www.simyamaha.com/Command_Link_Single_Engine_Round_Gauge_Kit_p/6y8-0e83r-81-00.htm which was recommended by the dealer I got the motor from. It did not come with a wiring diagram and as this kit works for a variety of motors, there are a lot of connections and wires that I know I don't need to use. The question is which do I use and is this going to be a plug and play install or will I need to custom connect some items? I noticed that I already have a 4 wire connection on the old harness inside the cowling that is not being used and was thinking that I should be able to use this instead of pulling more wire through an already over loaded raceway. I was also told that using the existing binnacle and ignition was not a problem and that everything should work. It looks like the new wiring will only use two wires from the engine, but as I'm unsure what does what, I'm reluctant to just start plugging shit together just because it fits. Has anyone done this before???