I just recently got a 1999 50 hp Mercury Bigfoot 4- stroke to replace a Johnson 40 2-stroke on my boat, the Johnson had a circuit to hook up a trim - tilt indicator on the dash, I have no idea which wires I need to hook up to make this feature work with this engine, the engine was used and I have no diagrams or color coded chart to help me. I would take this to my nearest dealer to check out but that is a 5 - 6 hour drive one way. I would like this hooked up before going out this spring, as the boat is ran in a lot of shallow lakes. The throttle - shift controller is a Mercury and has a pigtail coming out of it that is plugged, but has pins in it, does this have anything to do with the hook up of gauges? If so what else will I need to do?<br />Thanks 