I've always noticed some inaccuracies and problems with the navigation system in my 2002 IS300. I started looking around and I noticed that some of the problems may be due to the fact that I'm using "data 2000 ver. 1" software. I bought the IS300 2002 new and that was the softare it came with. I even bought the extended warrenty. When I brought this up with my dealership they wanted to sell me the upgrade for $250 bucks. ouch. Does anyone know of a better/cheaper way? Also I wonder if I copy of the Lexus Version 4.2 DVD would work.
Thanks guys.
