I recently installed an amplifier board containing two small JL Audio amps and a JBL MS-8 behind the rear seat of my 2010 SuperCrew. All three of these items fit nicely with the seats in the down position but when I attempted to raise the seat bottom I found out that the seat back swings back towards to the rear cab wall. In the up position the space behind the seat is effectively cut in half or less than what is found when the seat bottom is down.

I had to relocate one amp and the MS-8 to the space behind the passengers side seat which precludes me from raising that seat bottom all of the way without unlatching the seat back. The other amp does fit behind the drivers side but I had to make sure it was mounted on the board in an area that would keep it from contacting the metal frame that surrounds the seatback and the metal frame for the seatbelt reel.