sorry I know this was a while ago. But I can not find the lock/unlock wire at all. I have tried the blue/white wires that comeinto the car fro the door but nothing happens. Any help where I can find the wire would be great.

how do you got the tailgate to unlock/open? what wire to tap?

I know this is an old post but for anyone who has been trying to find the blue/white lock/unlock trigger wire but had trouble, remember that this wire will only operate the locking if the door is closed, so grab a screwdriver or suitable rod type implement and simulate the door being closed by pushing the door lock mechanism