I have AC for a couple of years and had limited success but I determined to get it going (that's another issue!). I just picked up a Helix 5 (for my small inland boat) as it was on sale and one of the selling features was it is AC compatible. Now I bought the Helix 5 I see it only has a micro sd slot. So my question is how do I get the standard sd AC card to work?
One more question while I have your attention, what is Humminbird PC?