Marine Remote Control Y ConnectorUse specifically when using more tha one remote when the remotes are not hooked up in a daisy chain. The WR600Y has a "pig tail" on the back that allows the daisy chaining to occur, while the WR100Y remote does not.Enables the connection of multiple Marine Remote Control (MS-WR600) to your 600 Series Marine Stereo. This is required to utilize Fusion's multi-zone technology when installing Wired Remotes in each of your audio zones. Compatible with the following models of Marine Stereo Unit:Marine Stereo for iPod (MS-IP600)Marine CD Stereo (MS-CD600)Marine DVD Stereo (MS-AV600)WARNING: This product can expose you to chemicals which are known to the State of California to cause cancer, birth defects or other reproductive harm. For more information go to P65Warnings.ca.gov.