Whine is speakers

[malibuboats91 10+ year member]

I have a 1999 vw passat that i am running a 12 inch JL W3 powered by a mtx 1500 watt amp. Then for my door speakers i have a Eclipse 500 watt 4 channel amp. It was working good for about 7 months, then i decided to pull everything out to carpet my box. Now i installed everything and when i turn on my stereo and the car is running i hear a squeal that changes pitches as a accelerate. The only change i did was i put a brass connector on the ground. Even if i pull it off it still makes the annoying noise. I have tried grounding it on different locations on the chassis still, makes the noise. I talked to best buy and they said the rca's are too close to the power and ground so i moved them away from each other and it still makes the noise. I tried replacing the rca's with better ones and the noise was still there. We took my car to my dads shop to check the battery and it was putting out 14.5 volts so thats good. Its totally driving me nuts! I was reading online that you disconnect the rca's to see if the sound still occurs and i did. The noise quit but im not sure what thats telling me. Im about ready to sell all my car audio crap and buy all new. Any ideas on how to fix this ANNOYING problem??!!!

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[phemps 10+ year member]

what brand head unit? pioneeer by chance? did you try grounding your rcas to the back og your head unit? that stopped my alternator whine

 

[malibuboats91 10+ year member]

Yeah its for sure a pioneer!! How would i go about grounding the rca's the the head unit?

 

[phemps 10+ year member]

i could of guessed ha search grounded rcas in google images its the first pic

 

[FatPat*da*Ratt 10+ year member]

crappy pioneer

 

[phemps 10+ year member]

pioneer really needs to work on theyre internal rca grounds

 

[malibuboats91 10+ year member]

WOW!!!! You are a life saver!!! It took me 5 minutes to do and all the noise is gone!! Thank you so much!! I spent all day in the garage with my dad trying to figure it out and spoke to many audio stores and they had no clue. Thanks again!!

 

[phemps 10+ year member]

your appreciation appreciated

 

[sk8rguy178]

i have an 880prs with a bad pico fuse, im thinking about taking the time to ground them but a have a 95 park ave and its a royal pain in the butt to remove the HU, well actually thats the easy part its crammin it back in the dinn thats the pain, thanks for the answers

 

[Blue Fury 10+ year member]

be a man. Take it out and put it back in. yes