So with the dakota you have the sender as seen here
It has a lever on it that can move 180 degrees, you hook a lever up to gear box selector shaft, run a small rod between the two, so that when in P the selector os extreme one way and when in 1st extreme the other. So its like a variable switch.
The gizmo brain part has a plug that wire from sender plugs into. Also has another loome that can plug in that can be used as N safety switch and reverse lights if you wanted to.
Now it has 1,2,3,d,n,r,p outlets on the side of it so you can either- plug in the dekota led display that lights up the digital symbols or
-or plug in indevidual led lights, so i have chosen this option so that the lights will light up my original dash facia windows, thus looking completely standard once together .