Layering volume bar over main content


I’m creating a site in flash with audio. I have created a main layer (layer O) with all my buttons on etc. I also have a volume bar that controls the audio (this also is where the audio file is called from). I’m trying to layer this over the main layer as level1 using the load movie AS. This works visually and my volume bar appears over the main level but theres no sound.
How can i get the volume bar to play the audio?
note: I thought about incorporating the audio volume bar into the main level but want to create a few skins that can be changed in the background without affecting the audio.