d_e_e_z

Can anyone help me out with a little problem im having? My 6 disc changer in my lex is not ejecting anymore. i want to upgrade it instead of replacing since cds will be a thing of the past shorty anyways. Does anyone have any options for me. im look for something more modern, like usb ports and aux ports without changing the whole system. Also is there anyway to upgrade the navi without buyin the dvd?