Help with stereo upgrade 2016 supercrew
 

I have points from work that I have to use on a certain site, if I could just cash them out I would but it's not an option.
In their car audio section there is some pioneer and rockford stuff and a-trent boxes so I thought I'd see if anything would work with the f-150. I'd like to fit one or two subs under rear seat.
Will this enclosure ( ) fit under rear and work with any of these subs:

Cerwin vega https://i.imgur.com/pWVqqf7.jpg
Kenwood kfc-w12ps
Pioneer https://i.imgur.com/YpnS4zX.jpg
Rockford https://i.imgur.com/fUTweHJ.jpg
DB Audio https://i.imgur.com/RDETAt0.jpg
Power Acoustik https://i.imgur.com/iwqFI8k.jpg

Amps: https://imgur.com/a/5PVI6

This would basically be free I have 17k points on the site, so if any of these are recommended it'd be nice.

Box is a little too tall. I think mine is about 6.5" at the front and that includes the standoff to let the subwoofer not hit the floor.
You say you have access to pioneer stuff?

Can you get their shallow mounts and the matching enclosure?

Yes, these are the pioneer options I have https://i.imgur.com/YpnS4zX.jpg
These are my mono amp choices https://imgur.com/a/5PVI6


Would it be possible to buy the champion pro 12 and the rockford prime 500 amp in a custom box and still retain use of the back seats....the mounting depth of the sub is 6.9" so that's what I'm worried about

Pretty generic box. Look at this one.

Ok ordered all pioneer stuff (I know there are better options, but free is free and will be better than stock)...Need to figure out a way to fit two 10's under rear seat that have a 5.5 depth. Is the fox acoustics box the only one that will work? Has anyone used their sealed version instead of the ported, there's no photo on their site of non-ported version:
http://www.foxacoustics.com/ProductD...F150-XC-210-15

The Fronts should be 6x9s on the 2016s. The 6x8 need a little modification.

Ok I found a bracket on amazon that will hopefully let me use 6x8's in a 6x9 place. I had them for a 14 mustang but never got around to installing.
I added 6.5's for the rear doors and another amp to power 4-channels....I'd like to retain the factory display/unit. Do I need to buy a dsp to mitigate the factory bass/treble roll-off, and will the lc2i be enough or do I need the lc7, or can I just faltten out EQ in forscan?