The ornamental design for a black boxholder for vehicle, as shown and described.
FIG. 1 is a perspective view of a black box holder for vehicle showing my new design;
FIG. 2 is a front view thereof;
FIG. 3 is a rear view thereof;
FIG. 4 is a left side view thereof;
FIG. 5 is a right side view thereof;
FIG. 6 is a top plan view thereof;
FIG. 7 is a bottom plan view thereof;
FIG. 8 is a perspective view thereof, showing the holder in a position of use attached to an unclaimed black box for vehicle; and,
FIG. 9 is a side view thereof, showing the black box for vehicle in an environment of use.
The broken lines illustrate portions of the black box holder for vehicle that form no part of the claimed design. The remaining broken lines in FIGS. 8 and 9 illustrate environmental matter which forms no part of the claimed design. The dash dot broken lines in FIG. 9 illustrate the bounds of the unclaimed environmental in which the article is installed and forms no part of the claimed design.