I just bought an 05 Audi TT Quattro 1.8LT

I don't know if these problems are intertwined or if they are different but I have 2 problems.

The first is that my CD Changer that is located in the back seat will not eject. I don't know if it is not hooked up or what is going on but all the fuses for the radio and such are fine so I don't think it’s that. I don't really want to take the whole back half of my car apart to get it out to see if it is hooked up or not so maybe something else is wrong.

The second problem is that I can not lock my car from the inside. If I am sitting in the car with both doors closed I can lock the doors but as soon as I open the door and hit the lock button to get out the doors won't lock. This means that the only way I can ever lock my car is with the key fob. Is this normal or any suggestions on what could be wrong that it won't let me lock from the inside and close the doors?

I don't know if both of these are a common problem or if they are linked to something but I would really like to get them fixed.