Login Music

So what I want to do is when the player is presented with the login dialog, I want some music in the background.

If I'm correct, its PlayAudioStreamForPlayer, but I'm not sure.

and could you tell me, would it go where the login dialog is presented or under OnGameModeInit

EDIT:

I know where it goes, and I know how to put it in my script, but I don't know where to upload it, anyone got any suggestions?