just got off the phone with tech support at raymarine, uuuuuuuhhhhhhhhh. how do these people stay in business!!!!!!!! i do not want to take my mast down this year and just bought their st60 wind, speed, depth. all i wanted to do is use my existing cable and wanted the specs on theirs, mark made me feel like i insulted God by asking such a question!! i own a alarm co. and know a little about wire and life safety. i beleive that any sheilded 5 conducter 20 gauge stranded copper should work. anyone else use their existing wire??regards and belittledmike