I have a Hikvision DS-2CD2387G2P-LSU/SL ColorVu 8MP Panoramic Turret IP Camera and a DS-7604NXI-K1/AP NVR, but I cannot get them to work with or detect an external mic being plugged in. I have tried the hikvision branded external microphone just to avoid an questions of compatibility, but it never worked and now and am trying a microseven microphone. Picture below is the wiring i am doing. I cannot even get a crackle from the external microphone and the camera will only use the onboard microphone. Does anyone know the trick to enabling external microphones on hikvision?

