Trouble with ALC668 Audio

I'm running a fresh install of Sierra on a ASUS ROG GL551J laptop. I've managed to get everything working except the audio. Currently I've tried both AppleALC and AppleHDA Patcher, neither of which have worked. My sound card shows up in System Information but not as a device in settings. Any help figuring out what is going on would be greatly appreciated.

submitted by /u/gdothard
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