How can I stop my mondeo cd player saying "phone" ?

Hiya

When I bought my 2003 mondeo it came with a nokia hands free kit already built in. I never used it as I dont have a nokia. However my little girl managed to kick the actual handset holder bit completely off the cd unit so that it was dangling in my passenger footwell (kids!!) Anyway I had the bright idea to just cut the wire & tape it up with insulating tape....apparently this wasnt the best idea ive ever had as now my cd player only says "PHONE" on the screen and wont play any music?! Any ideas on how I fix it would be hugely helpful & most appreciated at this point :) Thanks!