I just bought a used 2020 Ranger 520L with 3 Garmin units and am super excited to get to know these electronics. I know that nothing can replace time on the water, but what are the best tutorials (i.e. videos, articles, etc.) for learning about the electronics? I'm interested in anything from the basics (i.e. how to set up screens, etc.) to the advanced (i.e. how to interpret screens, Livescope, etc.). Thanks in advance for the help and recommendations!