Thanks for the insight guys. I was actually planning on getting a distribution block and just running both of the amps off of the single 4 awg wire coming in, which would then be split to each of the respective 8 awg wires for the amps.

Now my only problem with a bad ground is that it all worked just fine and dandy before the installation of the 2nd amp. That is where I'm having trouble believing that a ground is bad. It basically was working awesome, installed the amp, and then there's this noise from hell. Just to be sure it wasn't the new wiring, I unhooked the new amp completely and the noise was still there... I'm stumped. I'll be having a look at it this weekend and I'll see if I can snap some pictures to show you what the hell I'm working with.

Thanks again,

Frank