Easy! You don't even need to take them apart! You do however need to peel off the front piece and remove the green film that's behind, otherwise you'll get an orange light... (If you use red led's) I just put a 90 degree bend on my led's and stuck them in the existing hole that was left from removing the old bulbs! Here's the on and off...hah..they're bright!
5v led's run in parellel so I didn't have to use as many resistors... and I got them off ebay for $10 each bag of 100 shipping included do a search for "100 5mm led" and look for the cheapest ones, then make sure you check out the shipping for em because sometimes they fuck you there but if you're careful you're good....
