I just boat a 72 starcraft 16ft semi-v with an evinrude 50hp motor. As part of the deal I received an uninstalled power tilt and trim. I hooked it up to a battery and using a paper clip, managed to get it to work by completing the cirucit between the 3 prongs (didn't come with a switch) I have two questions: 1.One side of the unit is almost a perfect square and the other side is U-shaped. Which side goes on the boat? The only markings I could find on the whole thing is a sticker that says "up to 55hp". 2. Could someone tell me the best way to rig it up with a switch at both the transom and the console? Thanks,<br />Garrett