Hey if you find out let me know. Same car same year.  Mine shows error 8 when I press the tape button.  The book said try to hold the eject button down for 15 seconds (i think 15) to reset it....but that didn't work. I hope it works for you.  If I find out anything else I will let you know.  Thanks!
Kathy
                
 Kathy S Ferricher
                
 November 2006