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Old 04-27-2011, 11:06 AM   #1
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Alternator whine

How do you eliminate alternator whine?
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Old 04-27-2011, 11:33 AM   #2
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Re: Alternator whine

buy buying a new alternator...lol. unless u have something putting a heavy load on it, like a bad starter, bad electric fan, bad battery.
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Old 04-27-2011, 11:34 AM   #3
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In the speakers? Have you installed amps to your system?
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Old 04-27-2011, 07:59 PM   #4
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Quote:
Originally Posted by Las0mbra
In the speakers? Have you installed amps to your system?
I have dual 10 inch Rockford fosgates an a 600 watt rockford amp. The subs whine, and I'm pretty sure that it's alternator whine
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Old 04-27-2011, 09:10 PM   #5
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Quote:
Originally Posted by Snapple750

I have dual 10 inch Rockford fosgates an a 600 watt rockford amp. The subs whine, and I'm pretty sure that it's alternator whine
Check your grounds and make sure your signal cables aren't next to any electrical wires, and if they have to cross, make sure they cross perpendicular.(90 degree angle) those are normally the causes of alternator wine with subs.
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Old 04-27-2011, 09:39 PM   #6
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Quote:
Originally Posted by Las0mbra

Check your grounds and make sure your signal cables aren't next to any electrical wires, and if they have to cross, make sure they cross perpendicular.(90 degree angle) those are normally the causes of alternator wine with subs.
If they cross and they are both protected wires, could the whine still be present?
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Old 04-27-2011, 09:44 PM   #7
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Quote:
Originally Posted by Snapple750

If they cross and they are both protected wires, could the whine still be present?
At 90 degrees, it should be mostly okay... Oh, and if your power is running down the same side if the car, switch it to the other side. Protected wires really don't do much though...
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Old 04-27-2011, 09:46 PM   #8
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Quote:
Originally Posted by Las0mbra

At 90 degrees, it should be mostly okay... Oh, and if your power is running down the same side if the car, switch it to the other side. Protected wires really don't do much though...
I see, I'll look into it, thanks for the help
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Old 04-27-2011, 09:47 PM   #9
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Quote:
Originally Posted by Snapple750

I see, I'll look into it, thanks for the help
You're welcome man, and if you have any more questions, just pm me. I just installed a sub in my car and I did a ton of research about that kind of stuff.
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Old 04-27-2011, 10:10 PM   #10
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Re: Alternator whine

As stated, check your grounds, ensure proper protection/insulation on your wiring, and make sure it's not running too close to the power wires.

-Will
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Old 04-27-2011, 10:27 PM   #11
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Re: Alternator whine

Probably ran the rca and power wires next to each other, or at least on the same side of the car.
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Old 04-28-2011, 09:18 PM   #12
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It is very inconsistent I might add
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Old 05-14-2011, 09:24 PM   #13
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Re: Alternator whine

I rewired my entire sound system 4 times last week. First time my subs also whined with the alternator very bad. Even after I added a second amp for the aftermarket inside speakers the subs still whined even though the others didn't. The amp to the subs went out and I ran the subs off the second amp and the whining started in my front speakers then which was worse. But after I got a replacement amp and put the subs on the new one then suddenly I have no whine at all it is weird. I also don't have the instant thump or sound check when I start my car either.

I am taking a shot in the dark that is lies either with your gauge wiring you have running to the back. How well your ground is. How old your amp is and what wattage it is pulling compared to the gauge amp kit you used. Mine wasn't random though it was always on when my car was on then after I drove it a little while it would fade away or I mentally blocked it lol. Check the simple things first.
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Old 06-28-2011, 06:19 PM   #14
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Just make sure that you ran your power cable on one side of the car and your rca's and remote wire on the opposite side
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Old 06-28-2011, 06:47 PM   #15
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