2005 tacoma prerunner to 4x4 conversion

Also for anyone looking for hook up and indicator light while still only using a momentary switch to activate the ADD I found that when the ADD is engaged the gree with black stripe wire and white with black stripe with have continuity, and then are open when it is disengaged. This being said you can hook up wiring to these wires that you can use to illuminate a light only when the ADD is engaged.
Hope that helps for anyone looking to use a momentary switch with indicator light.
I will try to make a further write up on this with pics of wiring hardness and label corresponding wires.

 

Have fun, I really enjoyed doing this conversion on mine.

 

So what happened at the end? Did you completed the conversion?