Traded my F150 and no longer need the sub or box.
I had the enclosure custom built for the sub but it will fit other 10's.
There's a fiberglass bump out on the back to accommodate the magnet. It fits perfectly under the Super Crew back seat. Leaves the passenger side foldup open.
The box is recessed from the edges of the seat - does not stick out. With the black carpet it's very stealth.

Would like to get $300 plus shipping for box and sub. However, will consider offers.

Thanks!

 

what year truck was it in and did you have to raise your seat up?

 

It was in a 2010. Didn't need to raise the seat at all.

 

Realized I still have this sitting in a corner.
$250 shipped.

Thanks!

 

Jeez, it got buried in one of our storage rooms and wife is pestering me to get rid of this.
$200 shipped or $150 local pickup.

Thanks!

 

You have pics of it installed? Trying to visualize it

 

Unfortunately, I don't have any installed pictures.
If you're looking at it from the driver's side with the back door open you can just see the side of the box under the back seat. The front edge of the box doesn't stick out past the front edge of the seat.
On the passenger side you can lift the '40' section and have that whole space open - the sub box stops at the edge of the '60' foldup section.
The picture above showing the speaker is actually upside down - the sub faces the floor when installed.
It's really similar to the other aftermarket boxes for the F150. This one was just custom made with a fiberglass back. Fits perfect under the back seat and the sub magnet bump area sits in the small void on the underside of the seat.