Ok so I'll be the first to post photos of my set-up.
So the Pioneer amp runs the sub only. The Fultron amp runs he door and deck speakers, and the Kenwood runs the Infinity speakers in the rear trim panels. I know I have a mix of amps and I am working towards getting all Pioneer as I have had good luck with Pioneer. I removed the Lightning Audio amp as the Pioneer seems more powerful. As I sell the other amps off I will be replacing with pioneer.
The sub is a 10" Polk Audio db in a sealed box I constructed. I am looking at making a fiberglass enclosure moulded into the corner it's in now. I don't think now that I will reverse mount the sub as it will take away the precious space I have, but then again I do not put anything back there.
On a side note the Pioneer I have now is a GM-X722 with 1 internal fan. Does anyone know if this fan stays on all the time or does it have a temp sensor and only kicks on when needed.