I am installing a Garmin VHF radio in my hardtop. I would like to connect it to my Garmin GPS using the NEMA 0183 interface. The radio can't handle NEMA 2000. Does anyone know what type of wire I need to run between the radio and GPS and how many strands (2 wires or 4 1 pair or 2). I have cat 5 wire I could use or speaker type wire or do I need to buy something else? I would like to do this today and I can't call Garmin until Monday.