We really want to know the answer, so when anybody actually does upgrade to the latest, please post here.
Since retaining them can only be done by writing to memory of some kind, that may be the case. I do not think the units have the hardware to write to the DVDs.
I'l know for sure in October when I receive mine, but if a Lexus dealer tells you that the settings are retained, I got to believe they have been there done that many many times and it's not going to be a problem :)
I don't have my manual handy, can anyone out there give me the quick and dirty on how you actually install the DVD in the car (I have an RX-300). Thanks.
What Is The Latest Navigation Dvd?
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I don't have my manual handy, can anyone out there give me the quick and dirty on how you actually install the DVD in the car (I have an RX-300). Thanks.