Konadj

I am considering updation the DVD Navigation software from 5.1 to 7.1 on the 2004 Rx330(Generation 2/3). I am able to override the lockout on the existing 5.1 mapping software while driving using the direct touch screen entry method posted in several forums. If I upgrade to 7.1 will the override process still work? If yes is the process the same? Thanks for any replies. dej5613 Doug