Another rookie question: What is the little "door" to the right of the shift lever on my 2007 Deluxe automatic? It is oval and, when looked at from directly above, resembles a race track. It seems to have a little indentation just to the right of it that would allow for a fingernail or screwdriver to pop it open, but I'm afraid to try. Is there a USB port under there? I don't see any reference to it in the owner's manual. Can someone please help. Sorry, no pix at the moment.