I currently have an Icom 502, Garmin 182c and the new Furuno 1715 Radar. I want these devices to communicate and to be able to use all of their features. My question is what cables do I need and how will the interface work (GPS to radar and VHF; GPS to VHF to radar etc.)? Any help with wiring specifics and if you stock these cables would be helpful. Thanks! - Seadux