speaker pop

[pilyin 10+ year member]

OK, so on my break I figured out it's actually only one speaker making the pop/hum. Switched the RCA's in the HU and pop/hum switched speakers to the opposite side.

Guess I'll pick up a couple of RCA cables on the way home and do some more testing.

 

[pilyin 10+ year member]

OK, so after testing a bit more, I've found that it's only the right rear RCA out of the HU that is putting out noise and popping. Got my other front comp. speaker in and it's fine.

Tried other RCA's (cheap and 4x shielded) and they did the same thing. Tried sending that HU out to different channels on the amp and it's always only that HU out that's making noise.

So what do you guys think? Is this a grounding issue? Bad HU? It's pissing me off. As far as I can tell it's all grounded to good grounds and I've used all the tricks mentioned in the sticky. Guess I'll have to live with it till probably Monday.