At the end of last season I noticed that my Navman 3100 masthead unit was missing and there was other damage to the windex. The only thing left of the Navman unit was the support arm. Since there was no evidence of a lightning strike and I know there were no bridge incidents (a few close calls last year but no contact), I have to assume that there was a bird incident at the top of the mast. The problem is that Navman no longer exists. It was bought out by Simrad, a Navico child company. They are not sure if their IS20 head unit will be compatible and it is also too expensive. I'd rather not replace the system piece meal anyway. The Navman Unit is probably sitting on the bottom next to the boat. Any ideas where to get a Navman 3100 wind head unit replacement or ideas for retreiving it from Davey Jones' Locker?
