So I called Lowrance. The tech support was unaware of the website where I got the enhanced maps. Turns out, they are OLD maps and that's why they do not show up in the list. I only see "LOWRANCE" and "NAVIONICS" as options. This explains why I don't see a difference between the maps from one or the other. This myth has been "BUSTED". The link to the enhanced maps is not worth our time for this model. I wish I had better news as I only need/want an enhanced map for one lake. Not an entire region. I think Navionics should offer a deal like that. I think they would sell more product.