I was taught how to tap into wires by an old mechanic when I worked in a garage as a mechanic. This method is full proof. Use your wire strippers and cut the sheath where you plan to tap in. Do it as if you plan to strip the wire, but you obviously can't strip it. Make 3 or 4 similar cuts all within about a 1/4 inch. Doing this allows you to expose a small section of the wire. Next you use a pointed tool, I use a pick, and make and eye through the middle of the exposed piece of wire. Now take the wire you plan to attach to it, and strip about 3 inches off the end. Feed it all the way through the hole, and wrap it up and around it's self, then wrap the rest around the wire you tapped into. Tape it down in the direction of the wire, and tape a few inches passed in each direction. And as always... Enjoy your ride! Sent from my SM-G955U using Tapatalk