Get some hog rings and STRONG pliers, and an extra pair of hands. Remove the seats and strip them down to the foam cushions. Remove the wire harness and seatframe and seatback.The back pockets unsnap from the bottom and slide down. You'll probably need new seat-pocket plastic snaps from the dealer. For the plastic trim, remove all screws and it mostly slides or pops off. The seat control buttons pop off and the plate slides back.
The seat pockets material is held on by staples and spray adhesive and an elastic band. Just remove and replace the same way.. Use the old as a template to cut out the new. I added a layer of 1/4" foam to mine.
The creases in the seatback and bottom are held in by little springs and the rest is hog rings attached to wires imbedded in the seatfoam.Take the cloth off and you will see all the attach points where the new hog rings and springs (re-use) will go.
I got some HD spray adhesive and 1/4" sheetfoam from Michael's to build up the seat thickness like new, so the covers will fit much better and smoother.You can also stuff new foam into any damage holes (mine was deteriorated all around the drivers side bolster). Cut it in sections to fit in the creases on the seat. (Mock each section to the seat, trace the creases and cut. It looks like crap at first, but this is the best way once you get it on it will look great.) Glue it to the seat, poke holes for your headrest and let dry. Also you'll be better off to run a heat gun or hair dryer over your new leather before installation (or just throw them in the dryer for like 5 minutes). This will remove wrinkles and make them easier to manipulate. swap the wires from your old seat cloth and install in the creases of the new leather and~ if applicable, cut out your old heating pad and sew it into the new leather. Reinstall everything and make SURE al your wires are plugged in. I forgot one of my heater pads, and also the seat control has to be plugged in BEFORE you reinstall the frame.
It will take a full day for each seat.
Good luck!