You have to order it from a dealer and trade in your old disc drive when the update arrives from denso. The last update was 2004 now 4 years old. It costs $300.00 last time I ordered one in 2004. There is a flash drive port in the 98 lexus gps computers so I wonder if someone could load a newer version on a flash card and upgrade that way, I have never done it. I think Acura owners do that with there 98 hard drive computers.
yes i have a 99 gs 400 and i am in the same predicament... i think i am just going to sell mine and buy a new deck with the navigation so if there are any lookers for the stock navi ey just shoot me a message it is currently installed and willing to get rid of it or trade for a nice deck thanks ben