Abstract: A conversion kit for use between a vehicle radio housing and a front trim panel, and adapting to the panel and radio as well as to an instrument panel that receives radio, the kit comprising(a) a mounting panel having an opening therethrough to receive a frontwardly projecting portion of the radio housing,(b) and a multiplicity of generally L-shaped brackets having first legs with attachments to edge portions of the mounting panel to project rearwardly from a plane defined by the mounting panel, the brackets having second legs spaced rearwardly from said plane and extending generally parallel thereto,(c) the mounting panel and said brackets consisting of a one-piece unit, attachments of said first legs to said mounting panel edge portions having reduced thickness relative to the thicknesses of the mounting plate edge portions and of the bracket first legs whereby selected brackets may be bent or cut to sever their attachments to the mounting plate so that remaining brackets may be employed to secure the mount