good install video, don't forget sealant on the thru hull. Also some boats (mastercraft) seem to have issues with powering extra ballast pumps from the dash circuit board. The pumps draw a good amount of current that the board was not designed for. We would some times see issues with the gauges and the stereo head unit, especially if the battery is old and sits a little low. We would run the ballast puppies right off the battery are add a separate fuse panel.
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