if you want to do it with a stock switch you have to do a relay setup...haha i'm a electrical major but its the weekend so search on here or dakota-durango for what i'm talking about...im off duty if you know what i mean. however if you want to do it with something aftermarket its doable drill the holes out like said before and it helps if you can weld or have someone with a welder thats what i did. my stockers were ruined from leaking so i got some 3.5" ones from walmart and welded them in at my friends...other than the hole in my driverside wheel well shooting a rock in to break the driver side one they have been awesome and looked good