Macintosh file URL for Bidoo antN?

I am trying to use Bidoo antN to play an mp3 on my Macintosh hard drive. I can enter an https: url and it plays an mp3 fine. But I cannot figure out how to play a file: url. Or maybe I am entering an incorrect URL?

Is it possible? How? or is there an alternate module for playing an mp3?

Problem solved. I never got antN to work with a local file, but the RPJ TuxOn was simple to setup.