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<blockquote data-quote="Motovet" data-source="post: 2476659" data-attributes="member: 570186">I&#039;m just overwhelmed with this one. I checked my ground spots and they all read 0 on my Fluke. I tried both amps together in one spot, in seperate spots, and even tried a new spot. Also decided to run the HU directly from the battery and bypass the harness...no change. This is what I tried and results:1.Sub amp not powered = no noise.2. Both amps powered with all connections = lots of noise front speakers.3. Both amps powered and RCA&#039;s from sub disconnected from HU = less noise front speakers.4. Both amps powered and RCA&#039;s from front amp disconnected from HU = very slight noise front speakers.5. Both amps powered and RCA&#039;s disconnected from sub amp = less noise front speakers.6. Both amps powered and RCA&#039;s disconnected from front amp = no noise.7. Both amps powered and RCA&#039;s disconnected from both sub and front amps = no noise.8. Front amp not powered with all above connections = no noise.So why no noise with either front amp not powered, or sub amp not powered, and only when RCA&#039;s disconnected from front amp with both powered? What else can I possibly look for? Again I ask....can power wires pick up noise somehow? Is there a bigger grounding issue than the spots for the amps?&nbsp; Thanks for much needed help before I loose it.</blockquote>

[QUOTE="Motovet, post: 2476659, member: 570186"] I'm just overwhelmed with this one. I checked my ground spots and they all read 0 on my Fluke. I tried both amps together in one spot, in seperate spots, and even tried a new spot. Also decided to run the HU directly from the battery and bypass the harness...no change. This is what I tried and results: 1.Sub amp not powered = no noise. 2. Both amps powered with all connections = lots of noise front speakers. 3. Both amps powered and RCA's from sub disconnected from HU = less noise front speakers. 4. Both amps powered and RCA's from front amp disconnected from HU = very slight noise front speakers. 5. Both amps powered and RCA's disconnected from sub amp = less noise front speakers. 6. Both amps powered and RCA's disconnected from front amp = no noise. 7. Both amps powered and RCA's disconnected from both sub and front amps = no noise. 8. Front amp not powered with all above connections = no noise. So why no noise with either front amp not powered, or sub amp not powered, and only when RCA's disconnected from front amp with both powered? What else can I possibly look for? Again I ask....can power wires pick up noise somehow? Is there a bigger grounding issue than the spots for the amps? Thanks for much needed help before I loose it. [/QUOTE]

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