Ground Loop help

[VWBobby 10+ year member]

It sounds like the MS-8 is picking up noise from your engine/ecu/ignition and throwing it up the RCAs to your amps.

I would move the RCAs away from any power cables. If that doesn't help, move the MS8 further away from the front of the car. Try to avoid running RCAs parallel to other cables to avoid stray EMI (noise). Also, if the ground on your head unit isn't very good, it can make other devices downstream from the HU pick up noise and amplify it.

If you plug your ipod/phone straight into the MS8 (with amps attached to the MS8) do you still have the problem? If it goes away, I would suspect the HU or RCAs from the HU.

 

[bradl79 10+ year member]

It sounds like the MS-8 is picking up noise from your engine/ecu/ignition and throwing it up the RCAs to your amps.
I would move the RCAs away from any power cables. If that doesn't help, move the MS8 further away from the front of the car. Try to avoid running RCAs parallel to other cables to avoid stray EMI (noise). Also, if the ground on your head unit isn't very good, it can make other devices downstream from the HU pick up noise and amplify it.

If you plug your ipod/phone straight into the MS8 (with amps attached to the MS8) do you still have the problem? If it goes away, I would suspect the HU or RCAs from the HU.

RCA's are running on passenger side while power is running on driver side, the MS-8 is in the trunk with my amps, i will try to use an AUX directly to MS-8 and see if that works. thank u for ur input

 

[VWBobby 10+ year member]

Did you try bypassing the HU? What did you find?