I installed the Navigation Speed Lock Override available from PriusChat Shop : Toyota Prius Navigation Speed Lock Override [Prius Nav Override] - $80.00. I picked the V1. It works like a charm! Now I can text on my iPhone AND do a bing search on my car while I drive!!
Actually, at the last minute, I decided to go with the Prestigious Society Nav Override. The deciding factor was this statement: "2012 Toyota models with Entune system, a switch is no longer required! The activation/deactivation of our system is now integrated with the factory buttons on the steering wheel!"
V1 and V3 do not switch the parking brake wire so these 2 overrides will not enable DVD video on the Prius v ATP. If you don't want the DVD to display while driving, then V1 and V3 will work just fine.
