2006 Gs430 Navigation Gen 5 (9.1) Upgrade

[Ehong33234]

I have a 2006 GS430 and am thinking of buying the Lexus Gen 5 version 9.1 disc to update my navigation. It currently has the Gen 4 navigation which is outdated and doesn't show most of the roads in/around my home.

Has anyone confirmed if the Gen 5 disc will work in my car? If yes, please specify.

Will the display on my nav screen change to the graphics of the gen 5 or just merely update the road info, etc.

Thanks in advance!

PS. I searched all over for this before posting but couldn't find the answer.

[Ehong33234]

I DID find that the newer Lexus navigation (2007+) don't have the override option. That stinks!