The ornamental design for a back door cladding for a vehicle, as shown and described.
FIG. 1 is a front right perspective view of a back door cladding for a vehicle showing my new invention.
FIG. 2 is a rear left perspective view thereof.
FIG. 3 is a front view thereof.
FIG. 4 is a rear view thereof.
FIG. 5 is a left side view thereof.
FIG. 6 is a right side view thereof.
FIG. 7 is a top view thereof; and,
FIG. 8 is a front side view of a back door cladding for a vehicle thereof, in use condition.
The broken line surrounding the full-toned portion in FIG. 8 represents the boundary of the claimed design and the de-emphasized or half-toned portion represents unclaimed environment and forms no part of the claimed design.