hlep fixing whinning comeing from speakers

[deagle44cmag 10+ year member]

i have a high pitched buzzing comeing from my back stock speakers it only buzes when i run the signle from the back of the head unit through rca cables to the amp in the trunk iv tried buyin a filter from radio shack to get rid of engin noises in the rca cable. i fixed it by running speaker wire from the back speakers to the signle input on the amp. so when i turn up the volume it sends destored signle into my amp makein my subs sound like shyt dose any one have some suggestions to let me run the pure signle out the back of the head unit to my amp with out getting a whineing sound in my speakers

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[pavengmike6 10+ year member]

You have what is know as a ground loop problem or a bad connection. One of your grounds either your HU or your AMP is not good. Redue both of them. Is your ground wire the same size if not bigger than the power wire running to your amp???????? If not I would upgrade to make it happen. What size amp are you running and what size wire do you have?

Next thing is ( and yes I know this is a sore subject with some) Check to make sure your RCA'S are a good 2 feet away from your main power wire running to your amp. Some people will say THIS CANNOT MAKE THE HUMM sound, but it made it in mine.

If that is not the problem I would look at the RCA cables not making good contact with the HU or the AMP. Your RCA's might be bad. I have seen where the filter you bought will induce the buzzing sound. With the stereo on hook up the RCAs and move the filter around. See if the sound gets better or worse.

 

[CMcKinnonR]

The RCA's could just ****. get some zero noise RCA's if nothing else works. All the background noise i got was for useing bad RCA wire

 

[deagle44cmag 10+ year member]

idk beacuse when i plug the rca wire into the back of the head unit it starts even when i dont have the other end of the rca wire plugged into the amp so it cant be a loop and it only starts when i plug the rca wires into the siglne output on the back of the head uint

 

[pavengmike6 10+ year member]

Reground your HU. Make a new ground and do not use the factory one. Find a bolt that goes into the body of the car and connect to that. DO NOT use on that hold the dash on unless it goes into the body.