US model C300 2008 COMMAND backdoor menu?
 

Does anyone know how to get to the service/backdoor menu on a C300 2008 US model?. I really like to figure out a way to copy MP3 files to the 4gb partition. It is really annoying that the menu only allows riping a CD into this space. Also wondering if there is a way to enable DVD to play while driving allowing passengers to watch movies.

Thanks
-Arul