Has anyone found a reasonably cheap car kit for the Sony NW-HD3? Looking for a wired solution, ie not a cassete adapter or FM transmitter. Can it just plug into a standard Sony head unit in the same way as a CD multi changer? What leads are required? How about a lead that will allow it to output to a non-sony head unit? obviously this would probably not let you control the player from the head unit, but if it is cheaper... Thanks.