More amp help

[Viking]

I'm gonna wire remote cable to cigarette lighter ive pulled took it apart and there's a brown wire and a black going into back of lighter which do I wire remote wire to

 

[evocarlos]

the REM should be wired to the blue REM wire on the head unit if you have an aftermarket head unit that way the amp is only on when the stereo is on an not on all the time the ignition is on