Static noise from speakers when turning off accesories

[mkelias11 10+ year member]

I hear a static pop on the speakers when ever i turn off any accessory, like lights ac/ etc. and it also does it randomly. tred grounding bother amp and hu directly to battery still no fix.

just upgraded to optima battery and still no go.

what should i do?

by the way hu grounded to chasis.

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[funkyab 10+ year member]

sounds like a dround loop but looks like you have tried everything to correct that. My guess would be dc in your outputs. Put a DMM on them or the inputs of your amps and see if you spike shen shutting down.

 

[mkelias11 10+ year member]

What are dmm

 

[edzy 10+ year member]

pioneer HU?

 

[aturcotte127317 10+ year member]

ground RCAs FTW

 

[mkelias11 10+ year member]

yes its a pionner hu

 

[loopkiller 10+ year member]

What are dmm

LOL, it means a digital multi meter...

 

[hazardous0388 10+ year member]

get rid of the pioneer hu. i wish i had the money to replace mine though. =\

 

[edzy 10+ year member]

wrap a small piece of wire around the outer rca on the HU and ground it to the hu case. Problem Obamed.

 

[FurbiesAndBeans 10+ year member]

wrap a small piece of wire around the outer rca on the HU and ground it to the hu case. Problem Obamed.

x2

Pioneer HUs have this problem

 

[mkelias11 10+ year member]

i just did it i grounded the rca to the head unit, no go.

I noticed it the static pop aswell when i switch from the low to high beam

will one of those power line filters work? please guys help its drivving me nuts, becuase it constantly makes it!! at random times

 

[mkelias11 10+ year member]

I just replaced the amp with an new one, and nothing, tried running power directly to head unit and amp and nothing. I did notice when i flash my headlights it also does it.!!! will a power filter work or what!! please help

 

[edzy 10+ year member]

you could use one to help find out if its the rcas or a ground loop. If it goes away with it, then its a ground issue some where. Use a dmm to ohm out the grounds.

 

[mkelias11 10+ year member]

I ran the rca directly from the hu to amp, like temporary directly out of the dash and nothing, oh by the way i also grounded it directly from the amp through out side the vehicle and nothing, OK how do i check that with a dmm?

 

[loopkiller 10+ year member]

When you say nothing, does that mean no changes or no static? You need to be clearer with your posts please.