[cadgear]

Tried giving it a cleaning disc?
CD (and some lower-price DVD) players now are so cheaply made that they don't last more than a few years; the Sony XPlod head unit I've had since 1998 still plays, although it has problems every now and again.

If you eBay these things, they're not cheap. About $100 is what you'd pay at the very least. Junkyards might or might not have cheaper, as far as installation you can do that yourself. Its straight unplug-plug. Places like HiFiBuys charge $80 just to install. I'd grab a Haynes if you need it and swap it out yourself.