JTCO
Meme King
I like the idea of hiding it in the underfloor spot but I worry that it might get too hot. Unless you remove the carpet above it when the compressor is running there would be no way for the heat to escape. Hard to say whether it would get too hot before all 4 tires are pumped up. It certainly would eventually. Maybe store a couple of liters of water in there, too; water has a very high heat capacity.
I’m mounting mine here. Only place I could find.
It does get hot after 4 tires. I would think if you installed some kind of shield behind it or even got creative with some chimney insulation, it would be fine if you kept the compartment open while airing up. The other thing to think about is how hot it stays when you're done using it. I built a custom bracket for my wj and it sits there on the wall of my cargo area out in the open. Used it a bunch with no issues, but it does get hot.