No HDMI audio with AMD R7 370 in High Sierra

Hello, I just installed High Sierra on my computer. I had to research for a while but I was able to complete the installation and boot the system. I am using as GPU an AMD Sapphire R7 370 that is working perfectly after injecting ATI, and changing FakeID and Framebuffer. My main issue is that I don't get any audio through HDMI. I have checked and I have lilu, whatevergreen and AppleALC kexts in the folder. I don't know if maybe I should use another kext because of my GPU. Thank you for your help.

submitted by /u/soleuil
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