Hi everyone, I have a pioneer tswx1010a powered sub. It worked fine until recently it just stopped working, however I was getting a few "pops" from it while there was no music playing. The blue power light on the amp turns on. I checked voltage coming in, 12v across power to ground and 12v across remote to ground. RCA's tested good. About a week ago I washed my car and ut started worked again, then a few days ago I shifted things around in my trunk and it is no longer working. Anyone have any idea what the issue could be? The only thing I haven't checked is the speaker wire inside the box from amp to sub.