No direct knowledge about what the black box is attached under your microphone grille (?related to the security/motion detector system in EU builds?), but if you want, maybe get a voltmeter, then disconnect the flat black connector and see if you have 12V at the terminals (both with your S powered off and booted up). For my Blackvue install, I popped open the connector, and carefully laid the camera's black & white wires onto the appropriate terminals (was the 2 center terminals on the 4-pin connector), then snapped closed the connector. Thus I had 12V power (always on), but preserved the connector. My build does not have anything attached to the connector--some owners have speculated that at one time it was meant to be used for lighted vanity mirrors on the sun visors.