A complete harness for the rear window that by passes all of the stock safty points and that stupid relay box behind the drivers seat. It still lets you use the key switch in the tail gate. Before I installed it in my Runner I was constantly having problems with the 25 year old wiring going out in some way, a small short or loose connection, I somehow fried the relay box. Install this and you will no longer have any problems with your rear window, and comfort of knowing that you have a new harness that wont go bad after bumping around on the trail.