You will have to tie into the out out wire at the DRL box, under the dash. Also you will need to cut that wire, so that it no longer is attached to the OE wires. Keep in mind that, you only want to do this to the out out wire. You will need to research this ,and figure out what the DRL module looks like, and what wire is what on that module.How could I add a toggle switch somewhere to turn my 98's DRLS on and off?