ROM Hack what is the best way to find parts of the MP2K sound engine within a gba rom?

[biolizardshadow]

What is the best way to find everything related to the MP2K sound engine? I would like to know how to find all parts of the sound engine located in gba games. My main goal here is to be able to replace a sound engine used in a game that uses MP2K with another that uses a slightly different version of the same sound engine. Any help with locating any parts of the sound engine within a gba rom would be appreciated!