I am almost done with my active install, but I have hit a pretty big problem. When I run the rca to the x over from the hu and then to the amps then only the left or right side will have any sound. If I bypass the x over and go straight to mids amp then both sides work. I can not figure this out! Am I forgetting to do something or is this just a bad x over? btw, its a coustic xm6.