I been checking out and thinking about upgrading my current trolling motor depthfinder with a bigger unit with more features(built in GPS) and after doing the research I'm a bit worried that I won't be tech smart enough to work it.The main unit I been looking at is the Helix 9 2D with the GPS and been reading about updating it using a computer and all that and basically I don't have a clue about that kinda stuff coming from my Lowrance x 96 and the little handheld GPS I been using for the last 10 years.My question is can you just use the unit out of the box and have it work right or do you have to do a bunch of computer stuff to it to get it to work?I would really like to upgrade and it looks like a neat unit,but I wanna make sure I'm smart enough to use it before I would buy it.lol