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Old 02-20-2019, 12:05 PM   #8
kokopelliTim
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City: Central Tennessee
Vessel Name: boatless
Join Date: Nov 2011
Posts: 233
So looking at the two Garmin GPS units on my boat, and registering them with Garmin; I find they are discontinued". GPSMap 400 and GPSMap 700 (I think from 2012)

Can I update these units with new charts?
Will the new charts work in my old units?

I am just learning about these things and so much to learn!

The units work well and I do not want to update to new units. What might my choices be to get the best out of my units?

Thanks.
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