ok that wasnt it.. on the kicker amps it has an adjustment to run at 1volt gain range, 2 volt, 4 bolt 8 volt and 16 or somthing.. I originally had it at 4 volt, I adjusted the other day and put the 4ch to 2 volt (same as the sub amp which doesnt pop). Today I was messing some more, put it back at the 4 volt and it started popping.. Put it back to 2volt and its gone.. wtf?