Noise Issues

[bdelk]

I have a 2017 21 vlx.  I upgraded the stereo and now I’m having noise issues when the engine is running.  I added 3 wet sounds amps and 2 rev 10s.  I’m pretty sure I have a ground loop.  Can someone please let me know how to properly ground the stock stereo.  

[CJAY]

Have you tested it by unplugging the RCA's to see if they are the culprit, or if it's power?  If so it's RCAs it's a cheap easy solution to add RCA noise filters.  Doesn't' completely get rid of the noise, but it does enough to make it barely noticeable.  I had to add them to my upgrade from this past spring. I actually think the culprit is the exile RCA harness adapters to the DSP head unit

Edited June 3, 2020 by CJAY

[granddaddy55]

i had just HU and four speakers.  when upgrading to EQ, BT and amps only the amps were remote power and ground to batt two, had all kinds of noise from dash wiring ( ballast pumps, bilges, etc , everything made noise) 

now my acc switch that turns on system (different for you but you can do same  to circuit breaker for maliview switch) , HU, BT, EQ all are remote power and ground from amp board distribution blocks.  for a finishing touch (though noise was already gone) we added ground loop boxes  from best buy to outputs on EQ

zero noise with or without music when system is switched on  

Edited June 22, 2020 by granddaddy55