The ornamental design for a liner for lid of a motorcycle trunk, as shown and described.
FIG. 1 is a perspective view of a motorcycle with motorcycle trunk, featuring the liner for lid of motorcycle trunk of my new design; the motorcycle and motorcycle trunk are illustrated in broken line and do not form part of the design.
FIG. 2 is a top plan view thereof.
FIG. 3 is a front side elevation thereof.
FIG. 4 is a back side elevation thereof.
FIG. 5 is a left side elevation thereof, the right side elevation being a mirror image; and,
FIG. 6 is a bottom plan view thereof. An attachment plate for attaching to the lid is illustrated in broken line, and does not form part of the design.