Don Webster

I recently had the 6 disc cd changer radio in my 2012 Nissan Maxima S glitch and the cds disappeared from the screen. Are there any quick fixes to get those out? I’ve looked into buying another radio, but without removing the radio I do not know the part number/ model number or if it is actually a Bose system or not. It is a 6 disc changer without navigation. Can anyone help with this issue and are there any recommendations of where I should go in the situation?