I'm having trouble deciphering the wires at the infinity amp. What wires go to which speakers?

Mine are already spliced up… Looks like a line leveler or something is wired in.

Jeep came with an aftermarket head unit & speakers using some part of the infinity amp? That line leveler where RCA cables plugged into a different amp for a sub. The stereo worked, but that 2nd amp didn't turn on.

I'm putting in a stock HU and two aftermarket amps.

Can anyone tell me what these wires go to? I've been to wjjeeps.com and read another wire diagram, but I don't see or understand the wires.

I'm gonna try and add pics.

Thanks!