alright, so i ordered a box online to put my 15'' PB 3xl sub in. I cannot figure out this F'ing wiring though.. (I usually bought subs that were already wired to the box)
The inside of the box looks somewhat like this...
How do i connect the wires to those terminals? Everytime i try to unscrew them the amp plug in terminals become loose, and i don't want to to screw anything up. Are those metal strips used for anything?