If you don't download the maps for offline use from a WIFI connection ahead of time you will certainly need to use data while on the road. And if you have no cell coverage, your GPS app will still know where you are (using your phone's GPS) but will have no maps to display your position on.
You are better off to purchase a purpose specific RV GPS rather than replace your radio with one with a built-in GPS.
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Ted & Melinda
2016 ACE 27.1
2016 Chevy Sonic Toad - Selling
2020 Chevy Colorado Z71 Trail Runner Toad
2024 Chevrolet Trax 2RS - Soon 2B TOAD
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