[Xearo]

Ok actually its simple.
Jack the car up, take off the driver wheel. Take off the splash gaurd (plastic thing inside the fender). Then look inside there toward the driver door and u will see the gromit. Drill a hole into it with a bit that is close to the size of the power wire. Then use a hanger to string it through. From the battery, the power cable should run to the driver side headlight. From there, the cable runs behind the engine bay side wall along the inner fender area. You can run it to the grommit with the newly drilled hole.

Its perfect. Only takes about 5 minutes to poop off the wheel and splash gaurd. Keeps everything stockish looking and no places for liquid to leak in.