There is indeed a lot of space under the center console, especially if one were to remove the storage compartment and build a more shallow one to be able to use the space below it.
On the other hand, perhaps more of a less punchy mid-bass in the console may not be that bad, given that a strong woofer would rattle everything in the cup holder and console compartment.
Plus, building a box would also require a separate woofer and amp, further increasing the cost.
Dilemma continues. I guess I’ll do some research and cost analysis.