I compared the factory dtb of the KI T2 and my version of the HD18Q, and there is no entry in the audio settings that would justify not having audio over HDMI. Also, in my version, the analog audio output and S/PDIF should work. So without the logs, I don’t really know what the problem might be.
I don't know what the problem was, but I formatted the sd card and redid the process and now it works. anyway thanks for the help overall.