Will
Here is another update. I removed the AppleHDA and ALCInject, and my sound switched back to the rear speakers again. I had nothing coming out from the front speakers.

I then tried some LegacyHDA and HDAenabler kexts, unfortunately after a restart I had no output devices at all. So that was a no go.

I put all the working files back in and the front speakers are back up and running.

In looking at the various 5.1 setups out there, I am thinking we are not able to do this cause our output device is showing up as

Line Out / Line Out / Line Out / Line Out

I think it should be listed as

Line Out
Line Out
Line Out
Line Out

in the Audio section of System Preferences.

If it was listed this way, we may be able to create an aggregate sound section that puts all these together to allow us to enable 5.1 sound

Let me know if that makes sense. I am thinking there has to be information out there on how to fix this somewhere.

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Gigabyte P55 UD4P
i7 860 Overclocked at 3.5
Kingston Memory 8GB (2000)
BFG Geforce GTS 250 Video Card
Realtek ALC889a
LG SATA Internal DVD Writer