The ornamental design for an exteriorsurfaceconfiguration of an automobile radiator grill, as shown and described.
FIG. 1 is a frontal view of an exterior surface configuration of an
automobile radiator grill according to our novel design;
FIG. 2 is a perspective view front the left front views of the exterior
surface configuration of an automobile radiator grill according to our
novel design; and,
FIG. 3 is a top view of the exterior surface configuration of an automobile
radiator grill according to our novel design;
Features shown in dash lines depict the environment and do not form part of
the claimed design.