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I need help reducing engine noise in my 2014 Sport 200. My setup: Clarion HU in the glove box, Polk 5000 amp running interiors and sub, Polk 4000 amp running 4 tower speakers, Exile Dual Zone volume controller (not powered version, just 1 knob with RCA for zone 1 and 2) located at drivers seat and RCAs run around the front of the boat nowhere near power wires. I only have 1 battery and it is located near the engine in the v-drive locker. The main power is on a Perko switch by the driver's seat.
Steps I've taken:
I cut the HU ground and rerouted it to the ground terminal on the amp (I've tried both amps). Both amp ground wires were originally grounded to the grounding terminal on the engine block. I've moved those ground wires directly to the battery terminal. The amp ground wires are running with the speakers wires, but are not near any power runs.
Does anyone have any ideas what other steps I should take?
(Note: I had noise before installing the Exile controller, but the noise is enhanced after installing it.)
Steps I've taken:
I cut the HU ground and rerouted it to the ground terminal on the amp (I've tried both amps). Both amp ground wires were originally grounded to the grounding terminal on the engine block. I've moved those ground wires directly to the battery terminal. The amp ground wires are running with the speakers wires, but are not near any power runs.
Does anyone have any ideas what other steps I should take?
(Note: I had noise before installing the Exile controller, but the noise is enhanced after installing it.)