TS1382 Ive synced my library onto my ipod but it wont work in my car

Question

Hi,
When I 1st had my new stereo with usb fitted in my car, it would only play one of the songs I had on my ipod. it kept playing it over and over despite the ipod not being set to repeat.  I deleted the song and now when I connect my ipod to my usb on my car stereo, it states it wont play.
Any ideas?
Thanks Andrea

Answer 1

Yes.  In your main iTunes Music library listing, use the "plain" column list format (the one that does not show any album art).  In the column headings, see if you have one labeled "Kind."  If you do not, right-click anywhere on the columne headings and select Kind from the popup list (so that it has a check next to it).  It should now appear as one of your columns on the list.  You can drag the column heading to change column location.
Click on Kind in the heading, and it should sort the list by that column.  The songs that are MP3 should say "MPEG audio file" for Kind and be grouped together.  The ones that are AAC will say:
     AAC audio file <- songs ripped from CD
     Purchased AAC audio file <- songs purchased recently from the iTunes Store
     Protected AAC audio file <- songs purchased a while back from the iTunes Store
     (look for any other Kind with "AAC")
The key thing is that they will be grouped on the list by Kind, so you can easily select only the songs that need to be converted.  After a songs is converted, you will have a second listing of the same song in your iTunes library, so you definitely do NOT want to do this for your entire library. 
If your iTunes music library is large, you may want to create a new playlist in iTunes and only put the songs you want on the iPod on that playlist.  Then, do the conversion selection in the playlist, instead of in your main iTunes library.  After conversion is done, you can remove all the AAC versions from the playlist (they will still remain in your main library), so that everything is on the playlist is MP3.  Then, sync only that playlist to your iPod.