Places Online for Car Audio Equipment? Car Audio Questions

I'm looking for a place online where I can find good car audio equipment at good prices as well. Looks like I will be needing a new CD player sometime soon and I am looking for one that can play audio CDs, play mp3 CDs, and/or iPod or mp3 player hook-up.

The reason behind this is because my car CD has been acting funny the past couple of months. Whenever I insert a new CD it will not play for some reason but the CD plays in everybody else's players. This past week whenever I take CDs out of the player some of them have some sort of grease-like deposit on them. It has also began to scratch the CDs as well and ruin a lot of them. The car is not even 3 years old (2005 Toyota Corolla) so I don't know what is causing it. Anybody have any input?

 

Nobody?