Downline Converter?

mirra540ryder
mirra540ryder Posts: 136
edited November 2007 in Car Audio & Electronics
i got a downline conv. today and they diddnt really explain well how to install it. it came with two pos. and two neg. and a black ground. all they said was hook it into 2 speakers. right and left and rca signal comes out. what is the black ground go to and can i rig it into the speaker or behind the stock head unit