It shows no signs of use.  The Y-adapter cord is in an unopened package.  The package with the screws and washers was opened as was the bag with the remote in it. The smaller foam gaskets were stuck to the larger piece of foam and one of the smaller ones tore a little when I pulled them apart, don't think that's a big deal though.

Untested, no warranty - found in shop when cleaning, and no longer have a boat.