[Jefff]

pawn Код:

new DriverVehID = GetPlayerVehicleID(playerid);
    foreach(Player, i)
    {
        if(DriverVehID == GetPlayerVehicleID(i))
            PlayAudioStreamForPlayer(i, string);
    }

    or

    new DriverVehID = GetPlayerVehicleID(playerid);
    foreach(Player, i)
    {
        if(IsPlayerInVehicle(i, DriverVehID))
            PlayAudioStreamForPlayer(i, string);
    }