Sony Dvd 5 Disc Changer 2002 Have A Sony Stereo System With A 5 Disc Cd Changer...?

Have a Sony stereo system with a 5 disc cd changer...? - sony dvd 5 disc changer 2002

and the CD has had enough. It is time for me go. However, I read here that the CD could, from a DVD / CD without a completely new system without a fortune to repair what I'm buying now to be replaced. Here are my questions: Where can I find something like this, about how much it will cost is, can I install it myself, where can I get more information about this?

Thank you for your help.