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I installed dual battery setup about a year ago in my Honda SXS.. watched a lot of videos reviews a lot of post and only thing I couldn't settle on was how most people mounted thier fuse boxes. I didn't like the idea of it being on top of breather box and having to move it if I needed in there. Really, my idea came down to it needing a solid mount easy access and clear of being submerged. I built a bracket to attach to the frame just behind the 2nd battery. Top left of picture.