The stock cd changer is a pile of crap, i have the 12 disc and it never plays anything twice, if you dont like the song it plays for you, your screwed, if you change it, it will never play the song you want. in my case, it always plays the songs i hate, i would recommend an upgrade to a better system.there is a cd changer im going to pick up from best buy and it hook directly into your exsisting stereo and you can still use the stock head unit controls! fun stuff, good luck, youll need it :D