FIG. 1 is a front perspective view of my new design for a mounting panel for an audio-video assembly;

FIG. 2 is a front perspective view thereof;

FIG. 3 is a rear perspective view thereof;

FIG. 4 is a front elevational view thereof;

FIG. 5 is a right side view thereof;

FIG. 6 is a left side view thereof;

FIG. 7 is a top plan view thereof;

FIG. 8 is a bottom plan view thereof;

FIG. 9 is a rear elevational view thereof;

FIG. 10 is an exploded front perspective view thereof; and,

FIG. 11 is an exploded rear perspective view thereof.

The broken lines showing of a cabinet, a pivotable support arm and an audio-video assembly are included for purposes of illustrating environment and form no part of the claimed design.