Audio and power lines together now a hum when braking

[cmotavalli]

I have been having a humming noise through the speakers when I apply the brake. The noise is gone at all other times. The power and speaker wires are running along with the power lines for the brake lights/blinker into the trunk. I am thinking this why I hear the noise when I brake. Other than moving all the cables would a noise filter or a ground loop isolator help? Also would I install these at the radio or at the amp in the trunk.

Thanks

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[Silverado SS 10+ year member]

I have been having a humming noise through the speakers when I apply the brake. The noise is gone at all other times. The power and speaker wires are running along with the power lines for the brake lights/blinker into the trunk. I am thinking this why I hear the noise when I brake. Other than moving all the cables would a noise filter or a ground loop isolator help? Also would I install these at the radio or at the amp in the trunk.
Thanks

Where are your RCAs

 

[cmotavalli]

everything is running together rca speaker wire power lines and the wiring for brake lights

 

[keep_hope_alive Premium Member]

shouldn't have any effect and the noise is more likely related to grounding of the amp. easy test is routing RCA's down the opposite side.