[dvpatel]

CD Changer being a part of the audio system, questions need to be posted in the audio/video forum. I have moved your post but for future please post in correct forums to prevent thread locks.

The EX and EX-L both had the same radios unless you have NAV/RES then the radios between a plain EX/EX-L are the ones for EX-L R&N were different. The code is in the radio itself so you would need the seller to provide you with the code. Be sure to purchase one from 2005-2007 model years as there was a slight wiring change in 2008 and though the radios look the same, the 2008 one will not be a direct plug and play in your 2007.

 

[Gstom1]

Since you are replacing your audio system and if you have the money, why not upgrade your system to something a little more modern that includes an iPod/mp3 connector, bluetooth and maybe a built-in hard drive to store music.

Something like this:

AVH-P3300BT - In-Dash 2-DIN DVD Receiver with 5.8" Widescreen Touch Display, USB Direct Control for iPod®/iPhone®, and Built-In Bluetooth® | Pioneer Electronics USA