I need to split the one RCA output on the back of my Headunit to run two amps, I have bought two RCA y cables. One amp will run a subwoofer and one will run my speakers, is there any particular way i should hook the splitters up? I am confused to whether I plug in the splitters to back of the HU and then just plug the RCA cables into the end of each splitter or one RCA plug goes in one, one in the other. You know what I mean?
Just hook up the splitters to each RCA output jack on the head unit. You don't need to hook up one splitter to the other.
Also, make sure that you hook up your amp for the main speakers to EACH splitter and not just to one splitter, so you still have stereo sound to the main speakers. It doesn't matter so much for the subwoofer.