Adding Audio and Shaders Mods to Tekkit

[TheBlackReaper13]

Welp. Someone set us up the bomb.

I've been attempting for days now - albeit unsuccessfully - to add GLSL Shaders by Sonic Ether and some form of Audio modifier to Tekkit, all unsuccessfully. I keep finding outdated or incomplete material on how to add such mods to Tekkit - particularly Tekkit Classic, but also the newer Tekkit versions. I was hoping that someone could help me find a way to successfully add these to Tekkit, or provide me with files I can use that will allow me to use them in-game.

Thanks in advanced,

TheBlackReaper13