I have had this for almost 2 years. I have taken my boat to the bahamas twice. It works perfectly. I added a vision card, satelite weather and a Fuel flow sensor. The satelite weather is excellent but pricey through xm at $50 a month. But there are two lower tiers. They also let you cancel off season. You will need a $300 antenna for that. The sonar works great except for high speeds but that is an issue with my boat hull design I believe. The Fuel flow sensor was a huge pain to wire but it is nice to have. I also have it hooked to my Marine radio which will transmit and receive coordinates. Great visiblity in sunlight. No complaints. Xm radio controls from unit with weather. A visoin card is key for upper level funtions and routing. Great price for this.
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