I have a 2000 ML320. Recently the head unit stopped working. I just got hold of a command head unit out of a wrecked 2006 ML350. Along with all the wiring harnesses. I was told that if I relocate the two buttons on the side of my head unit and wire the harnesses up to the wires coming from the car for my old command, it'll work. My question is can it be done and is what I was told true? Any advice will be appreciated. Thanks