I bought a used 196 Princecraft almost 2 yrs ago that came with a 55# I-pilot. I was having issues with the autopilot shutting down and would not hold position on spotlock. It all came down to wiring. 10 ga wiring from the batteries in the stern to the bow, and undersized plug at the bow and when I looked at the battery posts I just about gave myself whiplash from shaking my head so hard - the were using alligator clips to connect to the battery. New plug, new 4 ga wire an auto reset maxi breaker at the battery with crimp on connectors at the battery and no issues since. The unit was starving for power. Something to consider also, with DC voltage, amp draw is reduced as voltage increases. You can get away with much smaller diameter wire on 24 and 36 volt motors that you would with 12 volt so if your boat is pre-wired for 24 volt motor and you are using a 12 you could be seeing wonky things happen.