To install audacious just follow these instructions.
/debian/stretch/main///install/index.html small and fast audio player which supports lots of formats Debian 9.0 sound 3.7.2-1+b1
sudo apt-get install audacious
Which will install audacious and any other packages on which it depends.
|Maintainer||Debian Multimedia Maintainers
|Description||small and fast audio player which supports lots of formats|