Sansa Clip best way to connect to car audio

Thank you for the information.

I checked the setting and unit is in MSC mode.

When connected to the car audio system using the USB connection there is clear communication but only with the Slot Radio function even though there is no card in place.

The audio files are all downloaded from Audible.com.

The sample music that came with the Sansa can be played quite well using the USB, but not the music or audio books I have downloaded.

I tried connecting to the aux in and thought at first it was not working, but with the Sansa volume turned all the way up and the audio system turned to maximum, could just barely hear the content.

How do I check if DRM?

Would appreciate any assistance as I would hate to go back to my IPod as the Sansa is a much better player.

Thank you