I am replacing my old garmin 168 unit and am wondering what new unit I need to get. I am looking for a good unit and mapping system that will help naviagte the bay area around port a. The main thing is showing me the channels I can travel in and the structure that are out there. Any help would be greatly appreciated. Thanks Jeff

hey jeff i have the 172c but i dont know if they even make them any more i will find out what kind of chip i have and let you know, it works good around port a area. i am ready to head south when ever you are hoping wind lays soon. i will pm you. bill