P3D v4 How to add sound for terminal

Hello, friends. I am making an airport for my P3D. I want to add some sounds just like broadcast for the terminal. When you are about to the terminal, you can hear the Boarding broadcast. I have recorded the sound, but I have no idea how to make it. If anyone knows how to, please tell me.
Thank you very much!!!
Save the file as a .wav (I think) and put it in your sound folder then copy an effect file, like a light or just anything small. Add the sound file and a proximity if you like and place it in your terminal.
Hi shushengerdai

You may find these 2 threads useful

Cheers Chris