Q: SL head sub out signal

[08versailles]

Is this a low level signal that needs to be amplified or not? I assume it is.
Is it one channel or two?
What is the cut-off frequency?
My amp has a low pass cut off frequency at 80Hz.
What kind of aftermarket success has anyone had using this signal?
I found the thread to turn the signal on, and now i can't wait to use it

[08versailles]

Found the subwoofer wire harness today.
I already have an aftermarket amp and sub to go in,
but i can't find a relevant speaker wire diagram!
Found lots for other nissans and infinitis w factory amps, but assuming same for V...
I've assumed before!
I will run power from battery w an inline fuse no prob. Ground no prob.

So which exactly are the SL sub-out wires and remote amp on wire?
Help Help! Good weather today and tomorrow! Got the itch to get it done
Thanking you for your help!
08v