Okay, I'll go through and check all my wiring and soldering. Hopefully it's just that. I've tried with 2 different speakers now, so I don't think it's that. I'll try different wires maybe. I've posted on the SudoMod forum too, so I'll hopefully get a response there too.
Yeah, It's pretty fun, and frustrating XD I've never done much with hardware before so it's a challenge! Once It's all done I'll probably make a post about it, and I'll link it here :)