The dvd/cd faceplate on my 2005 corvette won’t open. Prior to this it wasn’t recognizing a cd. Often times after starting car, I would have to reload cd to get it to play. This time I reloaded cd five or six times but it wouldn’t recognize cd. Then the cd door wouldn’t close. I finally got it closed and now it won’t open. However, after getting it closed, cd worked. How can i get it to open? If not how much does it cost to replace audio system.