Oooo, shiny, clean and tidy... just the way I like to keep my work shop. But out here on the dry, dusty trails and dunes of SoCal and the Southwest, my bed gets a fine layer of dust that finds its way under the BakFlip MX and everything contained therein. The same goes for under the hood, where I've been contemplating an ARB Twin install. Because of the OCD in me, I have to always unload and wash the bed and engine compartment after each trail run. Regardless of the dust, I need the bed clear to do what I bought the truck to primarily do, which is haul things, so I can't do any permanant or semi-permanent compressor installs within the bed itself. I, too, was dead-set on an engine compartment install, until I came across this video from Notarubicon who had an under-the-hood install in his Jeep right next to the engine but suffered through three failures over a three year time frame and eventually switched to a PowerTank. Although he never opined the possibility that the failures could have been due to the high-heat location of his install (which I believe is the root cause), his experience is enough incentive for me to look elsewhere, which the only other possible sites are inside the cab and under the vehicle. The ARB Twin is too loud for me to install in the cab (and again, I don't want to lose prime storage real estate to the compressor), so the only other suitable site would be under the vehicle. I'm presently leaning towards the empty spaces within the bed side cavities, forward of the rear wheels, or under the bed, near the transfer case; probably towards the driver's side in front of the fuel tank. In either place, it would be higher than the floor of the cab so if the air compressor gets submerged, that means I'm in deep dog poo because the cab floor would also be submerged.