I posted a thread a few months back about how I get intermittent sub hum. My empeg runs through the AUX in of my HU. When the empeg is out of the sled, no humming occurs at all. When the empeg is in the sled, the humming starts up and the level is sporadic.

Well, I haven't had much time to really diagnose the problem, but today as I was carrying the empeg back into my house, I noticed that the connector on the back (the one that connects to the one in the sled at the back) is kinda loose. it doesn't move a lot or anything, but it wiggles slightly. The 2 screws are tightened as I tried to tighten them more with no avail. I was wondering if this wiggling is normal and if this could possibly cause the varying humming noises??

Thanks.