According to my dealer it will work just fine. I just ordered one yesterday ($308 w/tax) from Sewell Lexus parts and am anxiously looking forward to updating. I still have the original DVD that came with the car and it's pretty out of date.
Mike
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Well, the update was on my doorstep when I got home. It took me longer to find the DVD player than it did to upgrade it in my '01 LS 430. Worked fine asa soon as I closed the door on the disk player.
Mike