Peo Error Message In Accord

I can't seem to find a definitive solution to this problem. I have a 1998 honda accord ex. The CD player displays a P-EO error message when a CD is inserted and then spits it out. The radio functions fine. Does anyone have the solution to this problem?

At honda we would send out the unit to the manufactor for repair, which can be high.

Everywhere else, we'd throw out the head unit and buy another one. Try www.crutchfield.com for one.