How do you change focus rear middle seat belt?

To change the rear middle seat belt in a Ford Focus, first, locate the seat belt anchor point, usually found at the base of the seat or on the rear deck. Remove any necessary trim or covers to access the bolts securing the seat belt. Unbolt the old seat belt and replace it with the new one, ensuring it is properly routed through any guides or clips. Finally, test the seat belt to ensure it functions correctly before reassembling any trim.