The Kenwood CA-Y107MR is a Y-adapter cable that lets two Kenwood Marine Remote Control Ready wired remotes share one ready port on a compatible receiver. Use it when you want volume and source controls at the helm and at a second location. Pair it with remotes such as the KCA-RC55MR; add a CA-EX7MR or CA-EX3MR extension when a remote needs more cable length. Remotes and extensions are sold separately.