I bought a 4" hole saw and center bit. Bought grinding stones and primer. After you decide EXACTLY where you want them. Sart to drill. Be careful not to go to high as you may cut into the inside of the fenderwell. I barely missed mine (I was lucky). So get as close to the gas filler as you can. After you cut the 4 inches, grind until the lights barely fit. You want them snug. Prime the cuts you make. I recommend the LED's witht the ruibber grommet. It may take a lot of pushing and shoving but you will eventually get them lights in. The wiring was wasy for me. But it depends on if you know how to wire. Use your manual for the colors. As for the backup lights you can see on the pics I am using them two lower backup lights on my bumper. It just takes one wire and you can find it using a multimeter. any questions let me know. Let me see your final product. Bryan