2003 Honda Civic IMA (Hybrid) Stereo Upgrade?

Is there a AUX jack in the default honda cd player that i can gain access to without ripping apart the whole car. I want to install a mp3 player and was wondering if there is an easy way to do it. The manual doesnt say anything about it. Also if i want to isntall a 6 cd changer in the boot is there a cable already there or do i need to open the dash panel....(really wanna avoid doing so)