I have a dashcam and am looking to hardwire a Power Magic Pro through the passenger fuse panel. This keeps the dashcam running but shuts off if it senses the car 12V battery drops below a certain threshold.   It needs an accessory fuse, an always live fuse (but am unsure which if any are always live), and an earth. Has anyone any experience installing one of these, or knows which fuse may be live and where an earth point might be in the passenger compartment?   My assumption is 59 (passive anti-