Thanks MG, I hope I don't have to replace it. So far I've pushed all wires back under the deck and slid the unit onto the mounting bracket and it still works. I hope my transducer reads off the back of the boat. My last one was epoxied into the floor of the boat, this one I drilled the dreaded holes in the back of the hule, outside, and mounted it just above the step in the hull. If it will read while running at 45 to 50mph I'll be happy.