[vectorit]

Just find a capable lock smith in your area, check to see with them if you bring in the cylinder they can make a key from it.

If they say no problem.

Then take the button mechanism out, along with all of the other key locks from the doors and bring it to them. They should be able to set you up with one key to work in the tail gate and all the door locks.

Or... Buy the new door locks so that you have a new key for the doors, then bring in the button lock from the gate and have them make it work with your new door key.