playback

I recently bought a usb and put some of the music from concert cds on it instead of having to change the cd constantly if I want to go to the next disc. However, every time I turn my car on, the USB playback resets and plays from the top. Is there a way to have the USB resume playback from...

so since the beginning i've had problems where my unit wont skip back to previously played tracks, yet the files play fine on over half a dozen different devices (including my wifes 14 outlander) well as time went on the play back got worse it would start many songs a couple seconds in from...