Good thread, i'm looking at fitting up some lighting to my D21 aswell, in need of a sports bar first tho (as i have the smooth tub without the cab protection barwork).
I'm hoping a D22 sports bar fits without too much of a hassle. Then looking to run an LED lightbar on the back of it, and since reading this thread possibly fitting a plug to the rear of the tub so i can run a light under my Oztrail gazebo.