Does anyone know if you can operate the rear entertainment from the front seat while driving? My kids are too young to do it themselves. Lexus customer service assured me you can do it before I bought, but it doesn't seem to work. My Lexus dealer also told me I could do it, but when I followed their directions it still doesn't work. Its very difficult (and frustrating) using the remote control and having to aim it toward the rear and press the correct sequence of buttons. Any help would be appreciated.