I was wondering if a new Garmin auto pilot system, which uses NMEA 2000 could interface with an older garmin gps unit, which uses NMEA 0183? If there is an adapter available, I was wondering if anyone has used it successfully? Or. I might just end up getting a new gps but wanted to weigh my options before I go that route. I like my current gps and would otherwise have no reason to replace it. Any input from a knowledgeable forum member would be greatly appreciated.