Hi. My name is Kimberly Evans. I reside in Birmingham, AL. I have just purchased a 2006 CLS 500 with nav, sat, and tel. This has been my dream car ever since I saw it in April 2006. So you can imagine my delight when I found one perfect for me. Black Opal, gray interior. The miles and price were right, still under factory warranty too. However, the dealership changed the battery and the radio/nav system is now locked. I do not want to pay to unlock these features! Does anyone know how to retrieve the unlock code and how to put it in? Thanks in advance.