The ornamental design for a radiohousing, as shown and described.
FIG. 1 is a first embodiment of a perspective view of a radio housing;
FIG. 2 is a top elevational view of the radio housing thereof;
FIG. 3 is a bottom elevational view of the radio housing thereof;
FIG. 4 is a first side elevational view of the radio housing thereof;
FIG. 5 is a second elevational side view of the radio housing thereof;
FIG. 6 is a front plan view of the radio housing thereof; and,
FIG. 7 is a back plan view of the radio housing thereof.
The broken lines in the drawings showing portions of the radio housing are included for the purpose of illustrating environmental structure and form no part of the claimed design.