Actually, I did read my vehicle’s audio system manual section thoroughly before posting and mentioned the only relevant issues in my post: it works only w/devices in USB Mass Storage Mode (MSC) and it plays MP3’s. As much as I can tell, this is the way most vehicle USB interfaces work - not just mine.
While I’m hoping that the CZ will work in my vehicle (it should, it supports MSC), this is clearly a problem others have had as well - witness thislonger thread
http://forums.sandisk.com/t5/Sansa-Clip-Sansa-Clip/Help-With-Sansa-Mp3-And-usb-Car-Stereo/td-p/61407
on exactly the same topic (which I didn’t find at first or I would have posted there).
