My DMG emits a heinous noise from the Speaker since installing the Pro-Audio and Backlight kit. Any idea why? Sounds like ground noise to me. Can't shake it down.
Send some shots of the guts. If not miswired, or shorting somewhere, could be a faulty part.
I have a similar experience, but mine only does it when I'm making music.
Also, send samples of said noise. Could be dope. In the right context.
Ok I'll disassemble soon. Yeah, only does it when I'm making music. It doesn't seem to happen with games. I also get noise on the built-in headphones, but the added audio port is clear.