The ornamental design for a projectorattachment for use on a vehicle, as shown and described.
FIG. 1. is a front, left, top perspective view of a projector attachment for use on a vehicle showing our new design;
FIG. 2. is a front view thereof;
FIG. 3. is a rear view thereof;
FIG. 4. is a right side view thereof, the left side view being a mirror image thereof;
FIG. 5. is a top plan view thereof, the bottom plan view being a mirror image thereof;
FIG. 6. is a cross-sectional view taken from line 6-6 in FIG. 2; and,
FIG. 7. is a front, left, top perspective view thereof, shown in a state of use.
The dash-dash broken lines illustrate portions of the projector attachment for use on a vehicle that form no part of the claimed design. The dash-dot broken lines illustrate boundary lines and form no part of the claimed design. The dash-dash broken lines, in FIG. 7 showing a square structure and a projection from the claim, depict environmental structure, which form no part of the claimed design.