I need to remove the rear seat to put an amp behind there. I have searched but only found directions for a supercab. Are they any different? There is something about a mini-buckle that I don't see. And there are some other steps that didn't seem to make sense. So far I have removed the middle seat buckle housing top and 2 bolts. That's as far as I got.
Any help would be greatly appreciated.

I would also like to see pictures of your amps mounted back there if you got 'em.

 

https://www.f150online.com/galleries....cfm?gnum=5660

Some say it is a PITA to get the seat off and some have no problem. Good Luck. I have no clue about the "mini buckle" you are referring to.
I have pics in my gallery of 3 amps mounted behind my seat.

 

After a cursory look at my backseat, I don't see the minibuckle either. How do you disconnect the bottom of the shoulder belt?

 

You don't disconnect it. I hung it up on the coat hook and then just removed the seat through the belt. I have a supercrew.