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03 Lx 470


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  • 1 month later...

Expect to pay $250 - 300. The upgrade will add a lot of new streets and a few million more point of interests.

On my 01 the 07 upgrade was very impressive on the increased information, maps and colors. However, I think it also overwhelms the computer. On a trip of 300 miles or more, I am likely to get some strange routing - detours on small roads that wander around adding a lot of miles to the trip. It acts like all the data points in the new DVD prevent the computer from maintaining a contiguous route from start to finish on a long trip. It helps to save a few milestone points along the way, then do each leg of the trip piecemeal.

Mine is a Gen 2, your Gen 3 may do better.

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