Hello, My CSX12 Mark II just came in today. However, after I hooked it up and turned the sub on from the back it makes this constant static noise with some popping in there as well. I took off the RCA cable but it kept doing the same thing. I've tried everything I can think of but am now at a loss. I'm really hoping it's something I can fix because returning it would be such a hassle, so any light on the subject would be greatly appreciated. Thanks!