Ok so I bought a newer trolling motor for my old boat and have a question. My plug has only two wires (red and black) while the foot pedal with the new motor has 3 wires (red, black, and white). My old set up was a 12 volt and this TM can be 12 or 24. I can't find a wiring diagram anywhere. So my question, what do I do with the white wire? I'm assuming it's crucial for the 24 volt use but not sure. How do I connect my plug to my foot controller with this configuration?