I was playing a cd today in my truck and all of a sudden the track display always says trk and the track number now it says trk the track number and c is by the track number (ex. trk 6c) I cant find what it means in the owners manual. It just started doing it today and does it to all my cds now.....any help is greatly appreciated.
Thanks

 

anyone please help

 

I think you hit the button for "compression". Button 5 on my 2000 Expedition. It says COMP over the 5 on the button. Press it again and the c will go away. All it does is add a little more fullness to the sound while listening at low levels.