I'm swapping out my 24v to a 36v trolling motor and under the bow panel noticed they had a block with 12v, 24, & 36v and ground for the wires. My red wire was on the 24v slot for my current trolling motor. My question is why would it need to be moved to 36v when adding another battery and wiring for the 36v new motor in the Bildge area should take care of it? This is on a 2008 triton tr186.