Please see the attached three pictures.
1) You need to remove the hazard light adapter wire from the back of the original head unit. The end next to the red arrow connects to a wire coming out of your dash.
2) Connect the end with our blue arrow to it's corresponding slot (blue arrow) on our hazard light adapter piece.
3) Connect the end from our hazard light adapter piece (green arrow) to its slot on the back of your new 4Runner Premium head unit.
