Hi, I am trying to hook up a teleflex amega trim guage to my 40 horse 4cylinder 1993 merc. My sevice manual doesn't cover any guages. The teleflex instuction are in 5 langauges and make to sence. I have a 4 pin tach harness hooked to my tach and that works fine. The trim guage has three posts, 1)ground 2)ignition 3) send the trim switch has three wires, red grn/wht, and blu/wht. and help would be very much appreciated. Also I've done a good search and found nothing that helps. A power and ground go to the guage, but what goes to the send post? Thanks.....Robert