Hi thane
Is it possible you're supposed to install  audacious-plugins.tcz  to play media files or streams (mp3, m3u)? From
the  audacious-plugins.tcz.info  file:
Comments:       Requires alsa or pulseaudio sound
                can optionally use the neon, libmms, wavpack, libvorbis, libsndfile, flac,
                libcdio, lame, libsamplerate, libnotify curl, mpg123,  faad and libsamplerate extensions
The list in the comments section looks very similar to what you reported. If that's the case, maybe a notation in the
comments section of  audacious.tcz.info  file should be added.