How do I use use Wwise with a Gamemaker: Studio project?

Question

I am fairly new with Wwise, however I recently completed Wwise 101 integrating sound into Cube. I am now working with a game developer who is unfamiliar with Wwise, and so far I have just been sending him sounds that he codes into the game. I really would like to start using Wwise, but I do not understand how to get started integrating sound into the game. I need someone to explain this to me in the most basic terms possible. I need to know exactly what the game developer I am working with and I need to do to get started. Is there code that he needs to do? Is there something he or I need to download? I keep reading something about GMWwise, but I am very confused about what it is. If anyone could explain this simply to me, it would be greatly appreciated. Thanks in advance.