True, with the USA Spec, you have to create 5 playlists that are labled as BMW_1, and so forth. These correspond to disks 1-5. "disk 6" is your entire library...
You are not able to see a readout of the time elapsed, song name, etc. Nor are you able to fast forward within a song. It acts exactly like it were a factory 6 disk changer.
The Advantage is that it is much cheaper, and the sound quality is 100% as if from CD...
<span style='font-size:12pt;line-height:100%'><span style='color:blue'>I don't drive fast,</span> <span style='color:red'>I FLY LOW</span></span>