When I winterized my SX for the first time, I removed the aft panel behind the engine and noticed why my shower hose had a hole in it. The shower hose box had pushed up against the engine which carved a nice cutout in the plastic box and cut a hole in the shower hose.
With the help of Capt Rick and Bill, we determined that the replacement shower box also doubles as the Seat Helm cover.
Since the clearance between the engine and the shower hose box was so small, I modified the replacement box by trimming the sides to make it square instead of tapered sides. This makes the inside volume of the box smaller but gives more clearance so the engine won't rub up against it in the future.