[DarkLored]

Here is the code:

pawn Код:

public OnPlayerConnect(playerid)
{
     PlayAudioStreamForPlayer(playerid, "https://www.dropbox.com/s/wwpotous9cb1ofm/finally.mp3");
     return 1;
}

pawn Код:

public OnPlayerRequestClass(playerid,classid)
{
     StopAudioStreamForPlayer(playerid);
     return 1;
}

this should work