The ornamental design for an antenna for automobile, as shown and described.
1. Antenna for automobile
1.1 : Perspective
1.2 : Right
1.3 : Front
1.4 : Back
1.5 : Top
1.6 : Bottom
1.7 : Perspective view in a state of use
The broken lines depict portions of antenna for automobile that form no part of the claimed design. The broken lines seen in FIG. 1.7 illustrate environmental structure and form no part of the claimed design. Reproduction 1.1 is a front perspective view of the antenna for automobile; reproduction 1.2 is a right view thereof where the left view is a mirror image; reproduction 1.3 is a front view thereof; reproduction 1.4 is a back view thereof; reproduction 1.5 is a top view thereof; reproduction 1.6 is a bottom view thereof; and reproduction 1.7 is a perspective view showing the use state in which the claimed design has been installed on the top roof of an automobile and forms no part of the claimed design; this design is for an antenna for automobile which is installed on the outside top roof of the automobile and is flat-type.