Mounting anything in a jon boat can be a challenge, esp with no console or ledges to mount to. I really wanted to mount my fishfinder on something that looked better than the usual 'rigged-up' 'block of wood' that rots over time. I made a mount that I'm very pleased with. It looks and works great! I made a You Tube video on how I did it. Let me know what you think. The cost was less than $10.