The speaker was attached to a Bracket Assy that held it over the top and faced it forward of the Allstate Radio. I had one at one time. The problem is that the Speaker needs to have an impedance matching transformer attached to it. Fid can explain why, if you need more details. You can install it using the standard Henry J Speaker bracket with a 6x9 Speaker, but again you need the transformer. I do see that the radio is missing the L-shape Brackets mounted on the side near the front that allows it to be bolted to the lip of the dash on the Henry J.
Note: This spearker does not have the correct face plate for a Henry J install. There was two other ones produced for this radio. One was shorter than the other. I too had each of these at one time.
