I have been trying to learn how to create custom maps with my Lowrance Carbon via Sonar Charts live using my Navionics plus card. I have watched all the online videos and attempted it but it never did anything when I tried it. I think all it recorded was my sonar. It never came up and began chart and putting live data overlaying on my screen like it is suppose to. I would like to see a video that goes step by step for Lowrance users. The best video I saw was from a link from a Bassmasters Elite but it did not do it for me.