Now we’re going to get into wiring. Before I go on, keep in mind that I have quite a bit of electrical experience from my days working in the construction world. If you are at all uncomfortable with running wires, ask for help! Or, perhaps take your boat in to have it done professionally. However, my goal in the following images is to mildly show you how I did it. Some specific tools and materials are required. In this image, I put both power sources to both units into one line on the battery.
I could have run the wires to the electrical board behind my dash, but I’ve actually found that those connections aren’t as secure and have a tendency to break. I prefer to run the lines straight to the cranking batter. Again, this is my method of connection, and I did place an inline fuse on each line as an added precaution, but neglected to take a photo. See the blue and yellow electrical tape? More on that to come.