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Upgrade Nav Version On 04 Rx330

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well 3 days of searching for answers and I think I have answered my own question. It is very clear to me that I have a Gen 3 nav with Version 3.1. For anyone wondering like myself you will find this link helpful.... well I did anyway.

You would be MUCH better served taking the money you would otherwise spend on the DVD upgrade and using it as partial (>50%) payment on ANY portable touch screen GPS/Nav system and simply turning the Lexus one off FOREVER.

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