Can't get navigation and cd player to work

I am facing the same problem and the guy is asking for 500 bucks....did you get your problem fixed?

You can purchase the manual from the dealer. You need the disc for the nav system to program it. Another is you may need to have a code to operate the nav. Did you press the mode button to go from radio to cd? Try to detach the negative battery or press the reset button to factory default, this will bring you back to the factory settings. It looks like a small hole on the radio face. You must use a fine point to push it in and reset it. Is a cd stuck inside of the cd slot? Do all your trouble shooting first and you will find your answer......runjoe