I agree that suspension airbags are probably the topic here. Mine's a Firestone controller w/ gauge and independent valves. I mounted to the removable trim piece that blends the center dash to the transmission hump. The unit faces up - I drilled two holes and bolted it, an a location that allows the air lines a bit of room, but otherwise is as close to the floor as possible. Unfortunately I broke one of the trim panel's clips, since I manipulate an extra piece of custom carpet underneath it from time to time. Used a zip tie on the broken side. With the drink holder and or ash tray open, it becomes obscured, but useable. It is the least obtrusive place on a Laramie, as there are no cubbies for an attempted flush mount. The truck still seats six when required. The controller takes just a bit of a lean forward and down to reach ... eyes can easily remain on the road except for a glance at the pressure. While the light is on my main dimmer switch, it is brighter than the dash lighting - between the ashtray/drink holder, it's quite easy to shield it if you enjoy a dim cockpit like I do - or a baseball cap, map or whatever will make it go away entirely. Sorry, no pics, but it's as simple as I describe. I can't remember the details of my air line and electrical routing, but I do recall thinking that a professional installer might balk at the location and not want to spend the time to get it right. Whatever the case, my shade-tree mechanic's pace probably took me 8 hrs. for the entire bag system install. Very happy with it.