Audio Animate to pre-recorded sound

I'm completely new to Unity, but knowledgeable with other 3D programs and after effects. All I want to to is add an audio clip to the scene that plays back audio when I'm in the animation window adding keyframes. I want to time my animations to the pre-recorded soundtrack. I've looked all over... maybe I'm not looking with the correct terminology? If I go to game mode I can get the sound to play, but I can't animate to it there (obviously). How can I just play through animation in the preview window with sound? And this definitely isn't Animation Events.