If the radio works and the cd does not, and you just put it in, it sounds like you have the blue antenna wire hooked up instead of the blue/white amp wire, that would cause the radio to operate but not the cd player. It sounds like you have a factory amp from the discription of the problem.
Hope this helps,
<img src='http://memimage.cardomain.net/member_images/1/web/301000-301999/301151_149.jpg' border='0' alt='user posted image' />
2002 Slap National SQ Champion Pro Street 601+
2003 Slap National SQ Champion Pro Street 601+
2004 Slap Expert Class 5th Place
2005 Slap Expert Class 2nd Place
Alpine CVA-1004, Alpine CHA-S624, Alpine NVAN751, Alpine PRA-H400, Adire Audio Koda midbass, Dynaudio MD-100 Tweeters, Audio Control DQS, JL Audio JL1000/1, JL300/4, JL 13W7