Razer Nommo Chroma Cable

Hello! So I was looking to get a pair of Razer Nommo Chroma from my friend and he is asking for money for it but the thing is he says he cut it and it doesn't turn on anymore. The cable is leading out from the right speaker. Does anyone know if I could get the right speaker either replaced or replace the cable myself? If I could replace it myself, where I could get a replacement cable or how to get a replacement speaker.