The ornamental design for an exterior facing surfaceconfiguration of side panel grille for an automobile, as shown and described.
FIG. 1 is a frontal view of an exterior facing surface configuration of a
side panel grille for an automobile according to my novel design;
FIG. 2 is an oblique view from above and in front of an exterior facing
surface configuration of a side panel grille for an automobile according
to my novel design; and,
FIG. 3 is an oblique view from below and behind of an exterior facing
surface configuration of a side panel grille for an automobile according
to my novel design.