Thanks to Jbird22 I'm fixed up with a helix5 di gps. I want to get a contour topo map with 1 or 2 ft of elevation. I don't know what to get to be compatible with that unit? I'm looking around and see lakemaster and navionics cards but I really don't understand the differences.
Also if i get the right card will the waypoints appear on it?
Also if i get the right card will the waypoints appear on it?