The behavior of the music box is not quite as like that of a correct CD changer. For example, will not be switched to the next "CD" when the last track of the previous one is finished. In addition, the cable to the switch "BOX - real CD changer" very clunky and the switch makes a transfer through narrow penetrations impossible. Particularly annoying is that if you have no CD changer and these switches so not really need. I have removed him. Caution should be exercised in the selection of the playback media. Do these too low reading speed then it is not working. It took a while and a few emails with the service of ARCS until I brought the part up and running.