Ok heres the best way to do this
Buy a switch (i perfer a glow duck bill switch so i know when it's on and not on)
Buy a drill bit for mounting the switch (the duck bill is a 1/2in drill bit i think)
Buy electrical tape
Find a spot to put the switch i put it in the little spot on the left side of the stering wheel its a little cubby it pops out i drilled a hole into it twards the right side and had do also cut some of the plastic behind it. Now the switch has a place to go you need to run the wires.
heres how i ran them. Start and the led on the bumper i went twards the passanger side and i went through the holes next to the radiator then behind the battery then up behind the fuse box then through the firewall (same spot that my sub wire goes through) if you cant find a spot make one with a small drill bit. then run the wires over to the driver and up and around where the switch is. now take out the center trim where the shifter is and there are two wires that run to the cig.. lighter one red and once black and both wires are a constant 12volt source don't touch these togeather when the wires are bare. Now strip a small spot on the red wire and attach a piece of speaker wire to it and tape it off then run that to the power spot on the switch then do the same with the black wire but before you hook it up twist it togeather with the ground from the led switch and hook it up to the ground spot on the switch and last hook the power wire from the led wire to the acc spot on the switch then test if it works then put everything back togeather and your done.
But keep in mind that you want to keep everything tucked away so it looks nice when done.
Hope this helps