My 2014 Tacoma did not come with a backup Camera. I would like to install one. I was told to look at the wiring harness near the bumper to see if there were 2 or 4 wires in the harness running to the tailgate. There are 4 in the harness which I am told it is pre wiredif there are 4 wires. Is this true? If so does this mean I only need a camera kit? I have seen kits on Amazon. Any help would be appreciated. I have attached a photo of the wiring running to the tailgate.