If you add the peg signals in parallel with your regular signals you won't have a resistance problem. I bought 2 packs of 3 "accent LEDs" from auto zone for about 6 bucks each pack. you can put more but I just wanted 3. The hardest thing is getting the holes in the same place on both pegs. Do the right side first, that side has the exhaust hanger and will cause you to insert the bottom LED a lil higher that you would have to on the left side. I made that mistake, but you really can't tell it's like a 1/8" or so. then just run the wires up the hollow part of the peg under the sub frame and to the rear signals.
Now some people use metal set or JB weld to keep the LEDs and the wires in place, I DO NOT RECOMMEND THAT. If your rear passenger kicks one of the bulbs or one burns out (rare but it happens), you will have a job on your hands digging that crap out to replace the bulb. I used white RTV and then used a little gray paint to blend it in with the rest of the peg.
Sorry for the lack of pics, but I am at work.
All in all it was a 13.00-14.00 job.