This kit, despite being close to $30 on sale, did not work in the slightest. First, the taps sockets are too wide to fit into my fusebox. I don't exactly drive an out of the ordinary car - I drive a Crosstrek, one of the most common cars in the country. I've read other reviews of people having to file down the socket to fit. But my question is, how in the world are these the wrong size for a standard sized fuse slot? The point of buying a $30 installation kit is that everything should be ready to work out of the box. I don't mind having to crimp or solder wires together, but these are genuinely the wrong parts. Not to mention, the crimping sockets are way too big for the tiny wires included in the hardwire kit. There's no way you'll get a good, secure connection with this type of fit.
Second, the installation guides listed on the website explicitly state that when wiring a camera into your fusebox, you should use a fuse of equal or lesser value than the fuse you are tapping into. So in theory, if I'm following the advice of the guide and tapping into things like my mirrors and cigarette lighter, all of which are between 7.5 and 15 Amps, how does it make sense that the only fuses included in the kit are all 20 Amps? Not only does this contradict with the posted guides and instructions, but a 20 Amp fuse does nothing to protect a camera that draws less than 2 Amps.
This kit is a waste of money. Save yourself the headache and buy the fuses and taps from an autoparts store. You'll thank yourself later. I'm meanwhile going to hope that Black Box gives me a refund for this kit.