Using the fuse puller or pliers, remove the selected fuse from the fuse box and insert it into the bottom row of the add-a-fuse tap. The fuse tap included in your add-a-fuse kit goes into the top row.
Using your needle nose pliers (or a similar crimping tool), trim off some of the rubber tubing (if necessary) to expose some wiring on your hardwiring cable. Connect that cable to the other end of the add-a-fuse (metal tube), then crimp them down to make the connection. Once the crimping is done, use force to tug on the add-a-fuse and wire so that nothing is loose. If everything feels tight, the crimp is good, and the connection is made correctly.
You will need two add-a-fuses for your hardwire installation, one for a constant fuse and another for the ignition-switched fuse - the ground wire does not need an add-a-fuse as it only needs to be attached to a metal ground bolt. Once everything is complete, the add-a-fuse simply needs to be put back into the slot that the fuse was taken out of.
If you want parking mode recording but do not want to tinker with the car’s fuse panel(s), we strongly recommend getting a dedicated dash cam battery pack. The BlackboxMyCar PowerCell 8 Battery is slim enough to be stowed inside the vehicle, and you can always plug it into a 12V outlet (i.e., a cigarette lighter socket) in your car.