Still have noise problem

[kev7706 10+ year member]

I made a post earlier about a noise problem and the problem has only been minimized. I hear a buzzing noise out of my speaker(s) when the engine is on, not while in accessory. The problem began after I got the head unit installed, but before the components. I brought my car to the shop today, but I am unsure of what they did as I left in a hurry. Nonetheless, they fixed the problem in 3 of the 4 drivers. But, the noise still exists in my left tweeter. Any suggestions?

My Sytem (in progress)

Alpine CDA-9825 head unit

Boston Acoustics SL60 components

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[johnecon2001 5,000+ posts]

try different locations for your Head Unit ground. Sound like thats what it is. Let us know it that fixes it.

 

[themainjam 10+ year member]

WTH all of the speakers except one? i am too tired to think...

 

[kev7706 10+ year member]

thats right all except one. The ground is good and im tired of this noise //content.invisioncic.com/y282845/emoticons/mad.gif.c18f003ab0ef8a0d9c27ca78d77a6392.gif

 

[themainjam 10+ year member]

that just dont make sense...... Shoot it!!!

 

[johnecon2001 5,000+ posts]

sounds like the speaker guys put some ground loop isos on the other speakers and not on that last one.... so changing the ground might help.. but if you know for a fact that its good, there really is no point to that.