I have FM mudulator. I copied MP3 music & arrange the sequence of playing it the way I want. like playing a, b, c, d, & so on. When I plug the FM mudulator to the cigarette lighter, the modulator plays c, d & then back to a, b & so on. In this case, how do I set FM modulator to read the sequence I wanted to?

SOURCE: not playing music

No Music Files Problem solved
Plug the MP3 player to PC
In Windows XP open Windows Explorer and navigate to one of the music files
Try to play the file in Windows
If it fails, unplug player and once the player switches off carry out a reset
Reconnect player to PC and repeat the process described above
You may need to repeat this several times until the music file plays in Windows.
After this format the player using Windows XP
Select the removable hard drive, right click and select format
Choose Fat32, enter a volume label (for example GMP33005) and select quick format
If formatting fails try several times
Once format is succesfull reload your music files using the software that came with the player
Be careful not to exceed 2.5 or 2.6 GB (leave some free space as this might be needed for the player to work)
The player should now play the music files correctly

SOURCE: mp3 player only plays on right side speakers

If it is car cd then check audio menu for balance and fader controls for centre , so that you will get sound fromfour spekers

SOURCE: xm radio

How do you use fm radio signal to access speakers, in lieu of cassett adapter?

SOURCE: Hooking up an MP3 to Alpine CDA-9805 head unit

ok when you look at the front of your system there is a button that has a (F) on it press and hold tell stuff comes on the screen then just keep pressing it tell you get to AUX off you should get it from there hope this helps

SOURCE: music will not play

I managed to get this sorted by changing the default setting in windows media player from ripping the CDs as a wma protected file to a mp3 file.