 You just need to have a little basic knowledge. You should be able to get in there, get the old ones out, get the new ones in, and have some fun with it. You'd be a lot more protected. Plus, you know, this one snaps in on both sides. It only goes in one way, and you can actually almost do it with your eyes closed. The lid comes down and clamps down on it, and it really becomes a water-sealed device that brings that electric power to your boat.