1934 Hudson/Terraplane Radio mounting

I’m installing the correct radio in my 1934 Terraplane coupe. As most probably know, the radio has two parts; the radio head that mounts to the dash and the electronics box that (I believe) mounts under the steering column support bracket.  The mounting holes on top of the radio do not match any of the pre-existing holes in the support bracket.  I can only surmise that I’m missing a bracket or there’s a different support bracket.  Does anyone have one or a picture of it??