I looked at the options of doing either an arch install, a spare wheel well install and a stealth install around the wheel well like the one's shown on the OP.
I ruled out the well surround install on account of the fact you can only reasonably get an 8" sub around it and you do lose a considerable depth to the boot (approx 5"). It also means that when the rear seats go down you have a large 5" ridge sticking up which makes the space more awkward.
I also ruled out the wheel well install on account of basically losing the spare wheel and tools. It was a tempting alternative though.
The arch install was an obvious one to go for as it only meant losing 3" at one side of the boot and most of the useless volume of the arch is used in a really effective way. The sub box I made is easily removeable too

At some point I'll be moving the amp to the other arch out of the way too (thanks for the reminder

)
Given the same choices I would do the same again
