Strange noises.

[shendrix777 10+ year member]

Ok i've had my car stereo system installed for nearly 2 years. I installed everything on my own so I won't say that its flawless by any means and it was my first install so it could be lots of things im sure. All in all I have been quite satisfied with it. I have 2 infinity 10.1 perfects being pushed by an infinity reference 611a amp running at about 40%. Then I have some old infinity reference 6x9's in the back and 2 infinity 63.7i's in the front running off an infinity 7541a 4-channel amp. Now i'm not sure what is going on but lately my speakers make staticy noises when i push on the breaks to slow down not sitting still. Also my rear passenger 6x9 makes staticy noises if my a/c controls are set to floor. If on max-ac there is a whining noise coming from rear drivers side and as i accelerate the whining becomes higher pitched in sync with the engine kinda sounds like a mini turbo. And sometimes when I start my truck my subs will be vibrating not real loud but it is audible but just by changing the a/c setting they stop. I havent the slightest clue what this could be but any ideas will gladly be accepted. These noises arent real loud but they are noticeable and it is bothering me alot cause I know something has to be wrong with it for this to happen.

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[SethPhillips 5,000+ posts]

sound's like a ground loop. check you're ground. at the amps and the headunit!

 

[ThatChevyGuy 5,000+ posts]

check ur rca's. Did you run them by the power wire? Check ur ground, and your hu's ground. Do you have a pioneer HU?

EDIT: beat me to it...

 

[shendrix777 10+ year member]

Yes its a pioneer deh 6800

 

[SethPhillips 5,000+ posts]

then do what it say's in the ground loop fixins forum.... it's a stickey in the wireing spot.

someone will more then likley shoot you the link...

 

[shendrix777 10+ year member]

Will do. Thanks guys.