Originally Posted by kaigoss69
The popping, as far as I can tell, is definitely not related to the harness, and probably not the relay either. And yes, the pin 13 signal from the back of the HU has more than enough juice to turn on the ms-8.
Andy W. already explained the reason for the popping over at DIYMA, although it may have been in connection with high-level amp outputs, not sure. It had to do with a voltage differential between the speaker-level outputs, and the ground, IIRC, but I'm no genius when it comes to electrical things...
Yes, Andy's explanation related to the voltage transients specifically when using speaker level from the HU....it could also be the case that we are somewhere in between as the HU is capable of 5v AC-RMS while ms-8 accepts 2.8
I any case I do think my relay is on the fritz