Well idk if it's much of a write up... I just used a jumper wire from the brake fuse to the horn fuse and tried it out myself before i closed the hood and it worked, but this was on a '01 chevy. I also tried it on a '92 or so Ford Escort and i had to do it a little differently cuz doing it the same was as the chevy didn't work. I can't remember if i tapped into his cruise control fuse or not. But every vehicle is different. I would try using the jumper wire from the brake fuse to the horn fuse first. O and if the brake fuse doesn't work try looking for a fuse labeled "rear stoplamp".