Any recommendation for a CD changer?

I am not understanding.  Your cats chewed an optical cable.  Can’t you just get a new toslink cable?

It's not toslink nor coax. It's Stan Warren's proprietary digital cable. With the 2.1mm micro jack ...with two wires connected to Led light. Can't find that part, otherwise I'd solder it myself. 

Onkyo is the only brand (that I am aware of) that still makes a CD changer.

If you want to shop used, you can pick up a Sony ES changer off Ebay for dirt cheap. They're pretty much bulletproof.

you can find an integra cdc cheaply on ebay--reliable and sounds pretty good. sony es was also a good suggestion.

Is the cable hardwired to the changer, or does it plug in?

If hardwired desolder the complete cable/LED(S) and send the whole thing to someone for a rebuild.

If it plugs in do the same.

DeKay