I started with the front camera connection and worked my way backwards along the top trims and window rubbers. I cut lines in the carpet lining for the wire between trims which I closed back together with impact glue. The hardest part was getting out side and onto the tailgate discreetly. Drilling a new hole near the grommet was easy but passing the wire and its connector up the flexible exit pipe and down the inside of the tailgate was a fishing game. When I eventually connected with the camera I had only about ten inches of spare wire to tuck behind the van lining.