Toleda,
Did a clean instalation, tried the method above,
1- AppleALC.kext and Lilu.kext to Library/Extensions
2-MultiBeast > Drivers > Audio √ AppleALCIf applicable,
Skylake/Kaby Lake/Coffee Lake motherboards: √ 100 / 200 / 300 Series Audio Support (HDAS > HDEF)
Still NO Built in Audio, I...