CD Stuck in Stock Stereo

Hey i need advice on how to fix my Stock Stereo. Its off a 2003 Celica GTS and it keeps saying CD IN but there is non in and i dont think i had one stuck...though my kids may have done it. ANYHOO..please let me know asap cause no CD Player is KILLING ME!

you could have had a cd in and ur kids put another one, best thing to do is take the deck out or if you can take a flashlight or sumjthing and see if you can see inside it to see if there is one (or more)_ cd's in there...you can also use a screwdriver to feel aroudn for one but i woudlnt reccomendthis unless ur desperate