This is an mp3 of the STS-129 Space Shuttle Atlantis launch. If you start Orbiter and choose the Space Shuttle Atlantis scenario, you can play this audio file in the background and have "launch coverage" audio on your ride to orbit.
If you want the flight date to be historically accurate in the simulator, create a copy of the Space Shuttle Atlantis launch scenario and use Date MJD 55151.804271. That will put you at T - 10 minutes. Plenty of time to set up your MFD's.