I bought an LC-50 dimmer to control the brightness of the various lights in and around my instrument panel. Since the dimmer knobs will be towards the passenger side of the instrument panel, I decided to attach the dimmer module to the aft side of the passenger-side subpanel.
Nutplates on the forward side:
Here it's screwed to the subpanel:
I mounted two potentiometers underneath the passenger's display, and topped them off with some nice-looking knurled aluminum knobs.
None of this is wired yet, but at least the components are physically mounted.