Below the bumper, there are triangle brackets at each end of the bumper which you can easily remove. Once removed, you will have access to the back of the fog lamps which you can easily disconnect the cable.
When assembling the bumper, the bumper will merely slide into the bumper mounts. You'll see the mounts at each end of the fender. When you slide the bumper in, tighten the bolts situated at the front of the bumper snug where you can easily move and align the bumper until you're satisfied with the position. Once you're satisfied, tighten he bolts. You can then proceed to plug in the fogs and assemble the triangle bracket beneath the bumper. Hope that helps!