Originally Posted by nyceshirtz

has anyone made a 5.1 navi disc with the 7.1 data? it appears all the above threads reference the navi 7.1 but no one states whether they used the original 7.1 disc or a 5.1 disc combined with the 7.1 datafiles. i dont think that toyota would completely remove the service menu as techs in the field would have a legitamate requirement to operate the nav while a vehicle is in motion to troubleshoot and/or try to recreate a reported problem.