I have tried to use smartaudio and audio on kiss fcv2 with tbs unify pro hv and mr. steele pdb but only smartaudio it’s available.
Connected vtx (audio) to kiss v2 TX5 and TX5 to mr steele pdb (V2.5) audio pad with 50v 100nf capacitor. i can hear only the beeps changing the setup from LUA or when armed sames beep. No audio at all.
If connected mr. steele audio pad to vtx I can hear the audio.