Hello to all : I own a 2000 GS-400 with 15,000 miles only, 20 x 9" wheels, aero package, 245-35ZR-20 , Teins with the EDFC , etc, etc etc . I have around $4,500.00 in Dynaudio speakers, Subwoofer with its own box, and Zapco amp 4 channels , another Zapco amp single channel for the Sub, etc etc. All this is to state that the car is in almost new condition , inmaculate paint, and I love it.... I love my car and I want to keep it ... the problem is the Navigation . I did buy the upgrade for 2003 for $300.00 and right now the only one they have is the 2005 for $360.00 . What I can do to update the Nav system ? is it possible to install a new Pioneer Nav or something like it , instead of waiting for the Factory to update ? Personally I don`t think that Lexus will update this hard drive systems for cars that old... I will apreciate any suggestions as to which brand or type I can do . It is imperative that I can also plug in the rest of the systems in the car. I can always put on one of those portable Nav systems for around $300 to $400 which I think is the best option , really ... Thanks, josey