There are many places to stick a ham rig.. I do not have a driver's side door so the wall beside the driver's seat features a Kenwood TM-733 (Also a pair of CB's and assorted other stuff) I bolted (Screwed) a finished length of slightly trimmed 2x4 to the wall and that's what I mount the radios on, Very solid.
The rig is a bath & a half model so just now I'm sitting on the throne, in front of the Kenwood TS-2000, listening to the breakfast club on 3973.
There is a spot in the bedroom but wife would not like that.
I did build a "Riser" to mount the radio, basically a plywood box, brings it up so the display is just below eye level as I type. the box's inside dimension is 9 by 12" so it holds, among other things, the OWNERS MANUAL for the TS-2000 cause. trust me, you don't want to be far from that book with all the features that radio has