The JL Unlimited isn’t available from the factory with 3rd row seating, but if you’re interested in installing your own, here’s an install showing how you can do so and still maintain an OEM look.
This JLUR with third row seating looks factory features, folds and tumbles and also features working seat belts. All these features are maintained because the donor seat is a JK OEM leather seat. Check out the install pics, results and notes inside.