Is the phone cradle all I need to hook up my cell to the car? The center armrest has a small black plastic piece that when removed has a port to plug something in. is this where the cradle goes? Thanks

Yes, you just need a bluetooth puck that you can buy from a dealership or ebay. They run anywhere from $300 to $500 depending on you source.

Thanks. So I guess the usual 'Mercedes tax' applies!! $300-500...nice.

So What exactly does this craddle called? I just got my E63 delivered on Sunday and has been trying to read whole manual and its making me drowsy....zzzz.