[SCRIPT] Interact with door script

[goodcap]

I'm trying to make it that when you try to open a door which is locked you hear a voice coming from a speaker. When I interact with the door I don't hear anything. This is my script:

void OnStart()
{
SetEntityPlayerInteractCallback("PlayMusicBox", "PlayMusicBox", false);
}

void PlayMusicBox(string &in asEntity, int alState)
{
PlaySoundAtEntity("", "16_puzzle_bridge.snt", "speakers_1", 0.05f, false);
}