head unit with subwoofer out rca

im installing an Innovatek IN-402DTM dvd player.

instead of having 2 RCA out for the subwoffer there is only 1

unit has Front and Rear RCA (red,white,yellow) Outputs

an RCA (red,white, yellow) Input

the subwoofer out

and a coaxial out

how would i go about hooking up the RCAs from the amp to the radio ? (i am not using the front or rear outputs, ive connected the speakers directly to the headunit)

there is no 'remote' wire either, but im assuming i can tap into the acc. wire to draw power, correct?

thank you for your time

figured it was that simple.

thanks for your time