1. Install the bar onto the truck.
2. The wire goes down the gas tank side.
3. Run that wire to driver side. There is a plastic you can drill through without metal.
4. You should have three wires. One is ground, one is power to exsisting brake light on the bar, the last one is future use light bar. Test which is which.
5. Using a drill and screw ground the wire to the truck. Anywhere metal is fine.
6. Open up the diver rear brake light and find which wire is power, splice into it using a new wire and run it back along your sport bar wire.(use plastic wire cover to prevent corrosion)
7. Once both wire is at the passenger door. Wire them together.
suggestion before wiring the rare brake light. Test connection before splicing. This will not interfere with all the computer things the new truck has.