Keeping the back plastic covering lifted away from the part, shift and pull the part free from the vehicle. (It may require a bit of shimmying.) Don't pull hard enough to risk damaging the part. It may still be attached if you have missed a plug or bolt. Double check that you have gotten them all before trying again.

The part should now be free of the car, exposing the rest of the electronics located in the car's rear. Set the upholstered part aside for reassembly later.