I'm not 100% positive but on the Furuno website it does say that your device does use Furuno/Navionics cartography, which would make me think that you could get a new Navionics chip for new charts to use. That being said, with having a device and technology that's now 16 years old, you might want to just think about upgrading your entire electronics setup. When I bought my boat in October of 2021 it had a 7" Garmin touchscreen unit in it that was from around 2013 or so. I upgraded the map card in it because I bought the boat in Maryland and I live just north of Seattle, but when I did it actually froze the GPS up to where it was no longer usable. Not saying that the same thing will happen, but it always could with a brand new chip on 16 year old technology. If it still works fine, I'd maybe see if you can sell it for anything and put that towards something you'll use and enjoy a lot more. I went with a Garmin 943xsv and really enjoy all of the features that it has on it, including traditional, chirp and sidevu sonar. If you're wanting to stick with what you've got, maybe try calling up Furuno and seeing what they recommend? For less than $2k though, you could get a new GPS, new transducer and maps card with some money leftover. Which, I'm personally not a fan of the Furuno unit like you have where it only has a 6" display and especially with all of the buttons. I prefer a 9"-10" touchscreen display, it's big enough to where you can see it at the back of the boat but isn't really overkill, though it's ultimately your boat and your call. Good luck!
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