New member here with a broken sub. The RCA connector on the rear of my Energy 10.3 sub is broke and spins freely. The previous owner had a locking sub cable connected and I should have known something was up when he delivered it to me with the cable still connected. But since it's my problem now I want to repair it myself and and upon investigation (I removed the rear plate from the sub) I noticed a grey wire (which was part of a bundle of multicolored wires) that had been disconnected from the rear of the RCA jack. I attempted a solder repair and when I reconnected everything all I got was a constant humming sound that increased/decreased as I turned the volume up/down. So I'd like to try and replace the RCA jack and bundle of colored cables & connectors but I cannot reach Energy as their phone system is not accepting calls. Any ideas where else I could turn for the parts?