I still haven't been able to get audio working. I have realtek 892 and have used audio_cloverACL-110 to get audio working in the past. This is what is printed when run on a vanilla AppleHDA.kext in S/L/E

[brianmitchell@terra ~]$ /Users/brianmitchell/Downloads/audio_cloverALC-110_v1.0q10.command 

Agreement
The audio_cloverALC-110 script is for personal use only. Do not distribute
the patch, any or all of the files or the resulting patched AppleHDA.kext
for any reason without permission. The audio_cloverALC-110 script is
provided as is and without any kind of warranty.

File: audio_cloverALC-110.command_v1.0q10
Password:
EFI partition is mounted
System Integrity Protection status: disabled.

OK to patch
Confirm Realtek ALC892 (y/n): y
Clover Audio ID Injection (y/n): y
Use Audio ID: 1 (y/n): y

Download ALC892 files ...
  % Total    % Received % Xferd  Average Speed   Time    Time     Time  Current
                                 Dload  Upload   Total   Spent    Left  Speed
100 25585  100 25585    0     0  10841      0  0:00:02  0:00:02 --:--:-- 10841
Edit config.plist/Devices/Audio/Inject/1
Edit config.plist/SystemParameters/InjectKexts/YES
Download kext patches
  % Total    % Received % Xferd  Average Speed   Time    Time     Time  Current
                                 Dload  Upload   Total   Spent    Left  Speed
100  1404  100  1404    0     0   2169      0 --:--:-- --:--:-- --:--:--  2170
Download config kext and install ...
  % Total    % Received % Xferd  Average Speed   Time    Time     Time  Current
                                 Dload  Upload   Total   Spent    Left  Speed
100  3665  100  3665    0     0   5493      0 --:--:-- --:--:-- --:--:--  5486
Install /Library/Extensions/realtekALC.kext
Install System/Library/Extensions/AppleHDA.kext/ALC892 zml files
Fix permissions ...
Kernel cache...
rebuilding //System/Library/PrelinkedKernels/prelinkedkernel
kext file:///Library/Extensions/CmUSBMassStorage.kext/ is in hash exception list, allowing to load
kext-dev-mode allowing invalid signature -67030 0xFFFFFFFFFFFEFA2A for kext AppleHDALoader.kext
kext-dev-mode allowing invalid signature -67062 0xFFFFFFFFFFFEFA0A for kext AppleHDA892.kext
kext-dev-mode allowing invalid signature -67062 0xFFFFFFFFFFFEFA0A for kext Soundflower.kext
kext file:///System/Library/Extensions/JMicronATA.kext/ is in hash exception list, allowing to load
kext-dev-mode allowing invalid signature -67062 0xFFFFFFFFFFFEFA0A for kext ElliottForceLegacyRTC.kext
kext-dev-mode allowing invalid signature -67062 0xFFFFFFFFFFFEFA0A for kext CodecCommander.kext
kxld[com.apple.driver.AppleHDA]: The following symbols are unresolved for this kext:
kxld[com.apple.driver.AppleHDA]:    IOPCIDevice::metaClass
kxld[com.apple.driver.AppleHDA]:    IOACPIPlatformDevice::metaClass
Link failed (error code 5).
Prelink failed for com.apple.driver.AppleHDA; omitting from prelinked kernel.
kextcache updated critical boot files, requesting launchd reboot

Install finished, restart required.
To save a Copy of this Terminal session: Terminal/Shell/Export Text As ...