I have a Viper model 4105V installed in a 2014 Nissan Rogue SL. Everything works except in remote start the rear window defrost and side mirrors don't work. You must turn engine off then start again and then everything works. I will go back to installer and see if there is anything they can do. The Viper 4105V uses another fob ( it's small and range is about 1000 ft ) but this is no issue with me. My wife's Subaru uses the factory key fob but it's cumbersome to activate . I prefer a separate fob. If doors are left unlocked you can start the vehicle but as soon as door is opened engine shuts off. When locked engine starts, unlock door and apply brake, car stays running and off you go. $330 complete, Viper 4105V and installed! Worked so good bought another one for my sister in law 2013 Nissan Murano, it to works great !!