I claim the ornamental design for a car phone mount, as shown and described.
FIG. 1 is a Perspective view of a car phone mount showing my new design;
FIG. 2 is a Front view thereof;
FIG. 3 is a Back view thereof;
FIG. 4 is a Left-side view thereof;
FIG. 5 is a Right-side view thereof;
FIG. 6 is a Top view thereof; and
FIG. 7 is a Bottom view thereof; and,
FIG. 8 is other perspective view of a car phone mount showing with phone.
The broken lines are for the purpose of illustrating portions of the car phone mount that form no part of the claimed design. Additional broken lines in FIG. 8 depicting a cell cell phone illustrate environmental subject matter and form no part of the claimed design.