Unzip and move to the mods folder.
If you like the mod don't forget to hit the 'Endorse' button at the top of this page, it helps me a lot and it's free :D

*Custom Music*
Unzip and move to the mods folder.
This part of the mod contains the sounds that replace the ambient sounds of the game.
This version handles ambient sounds better than Sound Tweaker. Use if you have no problems with Custom Music.

*Sound Tweaker*
Unzip and move to the mods folder.
This part of the mod contains the sounds that replace the ambient sounds of the game.
This version is quite limited compared to CM. Use it if Custom Music gives you problems.

*Sound Tweaker*
REMOVE PREVIOUS VERSIONS BEFORE INSTALLING.
Unzip and move to the mods folder.
This part of the mod contains the sounds that replace the in-game sound effects.