explorer sport trac

[joe]

help? i own a 2003 explorere sport trac with the pioneer 6 disc in dash stereo, the cd are hung i get cd error if i try to play or eject cds been like this sense i bought truck says changer is full, i have no idea if it is or not, is there any way to make it eject or to rest stereo i tried the disconnect battery cable thing, it went from showing 3 cds load to full,,any ideas,,thanks