No. On the sub connect the + on one voice coil to the - of the other voice coil. Now connect the remaining + & - of the sub to the terminal inside of the box. Now run a +/- from the terminal outside the box to the amp (+ to + - to -). Repeat for the other sub/side of the box.
You should have 2 sets of speaker wires attached to the amp. One goes to one terminal of the box, the other wire to the other terminal.