Cherokee foglight and auxiliary lighting question

Hi all, Have an 01 Cherokee that i want to add foglights and auxiliary led lights to. Opened up the dash and there is a pigtail to plug into the stock foglight switch behind the blank in my switch bezel. Pigtail seems ot have power as the back light to the switch comes on with the headlights, but no power running through the switch,as the "on" light doesnt come on. I assume this is because i dont have the necessary relays for fogs installed. Found a source for a second switch and a stock foglight wiring kit. My question is what is the easiest way to wire the fogs and the supplemental lights. Should i wire the fogs using the existing pigtail or use the entire kit to wire the fogs and use the pigtail to wire the leds? or vice versa. The leds dont need a relay so i was planning to wire those straight. Next question is what do the wires in the pigtail go to? I know its probably power ground power to load and a wire for the backlight to come on with the headlights but i dont know which wire is which. any help would be appreciated. Thanks Jason