LOC trouble

Please help! I am using a LOC to hook up my 1500W AMP and 2 Rockford Fosgate P212 to my factory head unit. The problem I am having is when I plug my RCAs in to the LOC... No sound. If I back them most of the way out or touch the male part of the cable to the outside of the female port sound comes out. Im not sure what to do to fix the problem.
Sorry about the faulty link I'm new to this. Turns out the problem was my splicing. I tapped in to the factory wiring at the passenger kick panel for my input and my negative wires weren't getting a good connectio . Simple fix! I celebrated by swapping out my 1500 for a 2000w amp and my first install is now complet .