strange noise prob.

[wags 10+ year member]

Ok, this is the problem. #1 I get a slight amount of road noise in general and #2 rustling from the subs whenever i switch tracks. I have my Bx1500d running off the rears. Then I have them passed through over to the 4 chan. Zx6400 amp. If i remove the passthrough RCA's it all goes away. They aren't crossing with power wires because I tried plugging in other cords and its the same thing (ones that weren't run). Any ideas?

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