I just installed a head unit that only has one sub out RCA. My other HU had two(Left and right), so I had ran a 2 wire RCA for it. My sub amp (mono) has two RCA's in. Now, I put a Y adapter at the head unit and left the two plugged in at the amp. But, I get no sound from it.
I took the RCA's from the amp that powers my rear speakers and the sub amp worked fine with those. I just cant get any power from the Sub output on the HU. Any ideas?
Also, what is LO/DX?
