Been researching this for quite some time and have not found a real answer yet. I live close to both lakes and Puget Sound here in WA state. I am trying to find a SD map card that will offer both lakes and marine expanded capabilities. It seems that on the Navionics site they list my unit as compatible with the platinum+ card but reading on forums I read a couple of threads where this is not true. I do see that Navionics offers a combo? lakes and marine card.
So my question is........ What map card should I be buying that will fulfill my needs for both fresh and saltwater?