I have a 2002 Javelin 185 (Same boat just different decals) and I really strugled with the question. The only one I found that was close and might fit was the Garmin GPSMAP 430S. I actually decided to leave my old unit in and Ram Mounted a Eagle 642cigps off to the side and have since been very happy with my decesion. I'll try and post a photo for you tonight.