I need some help with smart audio and a microphone. Quad has a unifypro hv vtx. Smartaudio was working perfectly. I added a camera with a mic and wired it up according to the "ideal connection" on git hub with the two resistors and capacitor. I get good video and I can hear a clicking in the audio until I arm, which I have heard is normal. Smartaudio doesn't work and I get no sound. Any ideas?