So my brother has an 09 E350 and was wondering if there is a way to bypass/re ground something so the pasengers can watch a movie on the Nav. screen while driving (He's smart enough to obviously not watch if he is driving). I think he said there was a way to do this on the prior year E's but couldn't find anything on the 09+ with the new nav/audio screens. I know with the Infiniti's it is just a matter of moving the ground off the parking brake but I have no idea about the Mercedes and can't seem to find an answer. Anyone know how or know where else I can look to get this info??

Thanks!