sh /path_to_where_you_have_saved_the_script/wamp-equalizer-audacious-bmp-xmms.sh
You can choose 1 for Audacious, 2 for XMMS, 3 for BMP and 4 to quit.
Choose the number for your multimedia-player and these features will be available for you.
To get these features to work after install, you should close and open the player.
PS! Be aware that you have to install the program(s) before doing this.
If the programs are not installed, this script will not work.