next door radio

people who live next door to you in a block of flats and watch TV so loud that you can hear every single word very well as if it is your own radio playing in your apartment

Jack: You turned your radio on?
Hugh: No, it is my next door radio.
Jack: What?
Hugh: My next door radio. My neighbours who watch TV so loud that I can hear it through the wall and undestand each word very well.