Lots of threads on this. Yes, you can audition but be prepared to wait. Get there early to put your name on a list. If they see all the equity performers and still have time, they will see you.
"This table, he is over one hundred years old. If I could, I would take an old gramophone needle and run it along the surface of the wood. To hear the music of the voices. All that was said." - Doug Wright, I Am My Own Wife
"It never bothered me that she called me a c*nt, it bothered me that I answered to it!" Carol Channing about Ethel Merman filming an episode of "The Love Boat"
"If I ever go looking for my heart's desire again, I won't look any further than my own back yard. Because if it isn't there, I never really lost it to begin with!" -Wizard of Oz