when i accelerate, this whining comes through the speakers

[GSXDNA]

Just bought an in-dash nav system for my 99 gsx. Works great, but I'm getting some noise when i accelerate...im thinking its a bad ground. I've tried 3-4 different grounds, no change. when i accelerate, this whining comes through the speakers.

Do I need to ground my head unit to the same ground as my factory amplifier? Where should I ground to?

Thanks.

 

[GSXDNA]

I have changed the ground 4 times...problem still exists. It is currently grounded to the same place my stock infinity amp is grounded to.

When I close my door, while my dome lights are dimming, the buzzing is really loud until the dome lights are on. Anyone have any ideas on this?

 

[boostnhard]

you should try grounding everuthing individually, i had that problem when i had my amps grounded at the same bolt, separated them and the whinne is gone!!!

hope this helps

 

[Bones420]

I second the motion. The question has already been answered correctly but to be more in depth, what your hearing is "engine noise" comming through your speakers because of having multiple grounds grounded to your amplifier ground. Separate the grounds independently and your problem should be solved.

 

[GSXDNA]

I have tried grounding my Nav to 4 different grounds. I tried two chasis locations, one to the battery, and one to the amp ground. The ground noise sounds exactly the same in all 4 scenarios. Therefore, I have determined that it is not the ground. What else could it be?

 

[vanilla gorilla]

Are you using the factory amplifier?

 

[RedTurboEclipse]

Yes are you using stock amp? First of all installing an aftermarket deck using harness, means you are no longer using the factory amp. Yes you can see that it is still hooked up and think it is working, but it is not. You would need the MITAH adapter harness, to give you proprietary wire conversion for the stock amp turn on wire and outputs, you know that 6-pin din cable.

There seems to be 2 sets of wiring with the 2g audio, obviously because the base models did not have the premium sound with the amp, so it was all deck power, hence what happens when you install a new deck.

So coming back to your problem, if its straight deck power, then as everyone keeps saying, check your ground. If this doesnt help, maybe check speaker connections. There is a possibility that the deck is faulty. Try a different deck to see if another one produces the sound.

If you are running aftermarket amps, check the quality of your RCAs and make sure they are not running along the power wire if they are the cheap ones.

 

[GSXDNA]

Yes, I am using the factory amp. And yes, I am using the six pin connector. The problem does not appear where I am grounding my head unit. The only wire I connected that I was unsure of was the signal wire from the six-pin amp cable. I couldn't find anywhere to connect this to, so I connected it to the IGN/ON wire that the head unit uses.

This is frustrating.

 

[RedTurboEclipse]

So you are using the MITAH adapter, that gives you rcas to the 6 pin din connector. The "signal" wire you speak of, it was part of the MITAH cable harness right, and it's blue. That's just the remote turn on wire, to tell the stock amp to turn on. You should have connected that to the amp turn on wire from the deck, should also be blue. Some decks combine the amp turn on and antenna wire together, use the one specifically for amp.

If this is your install, I now its only a few wires so I don't blame you for being frustrated. It's just IGN, MEMORY, and GRND, that you have to connect for the deck, then if you have the mitah just connect the RCAs to the deck, and connect the 6-pin din to the stock mitsu proprietary one for the stock amp, and the blue wire on it to the amp turn on from the deck.

If all this is correct, borrow a deck from a friend and see if it still does it. Like I said earlier, might be the deck.

I had a case where a reputable brand, Pioneer, deck was doing the same. Whine in the speakers, and got louder when revved. I double, triple checked my install, everything was perfect. I decided to see if another deck would do it and it was gone. There was somethin funky going on with the RCA outputs on the deck that was giving the whine.

 

[GSXDNA]

Here is the problem...that blue wire to turn on the amp...there was no corresponding wire for that with the factory setup. Therefore, I simply connected this "amp on" blue wire to the yellow ignition wire. I have no idea where else to put it.

Maybe it is the RCA's. I should try putting some electric tape around the two bare sub RCAs coming out of the deck that are not being used. Maybe they are causing an issue possibly.

 

[Twistaye]

Generally speaking the "engine noise" is most likely caused by a bad ground as everyone has been saying. But when you cross speaker wires, power wires, and ground wires you could give yourself the same effect. When you run your wires make sure each wire is isolated and not crossing over each other as it would cause your "engine noise." +1 to RedTurboEclipse he is definately giving you the best information you need right now, everything he said is true. In the back of your deck make sure when you install the wires make sure no wires are touching or crossing, try and isolate them from the other power wires, etc in the back. I know it's difficult, but maybe you can figure something out. You may also try a ground loop isolator, didn't work for me but it's possible it will help you out. Just a couple quick quotes;

"The noise is nearly always caused by improper grounding of your system. According to the wikipedia, a ground loop is caused by an unwanted current that flows between a conductor at two points that have nominally the same potential.

The chassis of your car serves as a ground. Often when installing PC's and amplifiers, they are located in different parts of the car. The ground wire for both units is often grounded in different spots on the car. While the metal chassis is a decent conductor, it isn't perfect and there can be a difference in electrical potential between the two grounding points. The result is a buzzing noise, or a whine, often coming from the alternator, which accounts for the change in the sound as the alternator spins faster and slower with engine rpms.

There are two possible solutions:

1. Ground all components to the same point. This will reduce the potential and should greatly reduce any noise.

2. If number 1 is not possible (and it often is not), use a "ground loop isolator", available at nearly all electronics stores, or car audio suppliers. This device prevents a direct electrical connection between the two sources and will usually fix the ground loop.

The source of the whine can be mysterious and very difficult to track down even if you perform 1 & 2, above."

Oh yeah, I got this information from here; FAQ: Getting Rid of that Whine or Buzzing Noise in Your Speakers - MP3Car.com which also provides a couple more suggestions which may help your situation. If those don't work definately read more into that and see if any of the other suggestions help you out, there's a plethora of information there so you should be good to go!

Hope that helps you out bro! Good luck

 

[bobby180360]

is the spot where you have it grounded painted over? if it is take some sand paper to get it to bare metal and try that, it worked with my setup...

 

[RedTurboEclipse]

I ran rcas along the power cable before and i too did not get a buzz, but i believe it was due to the quality of the rcas. they were multi shielded twisted, etc. The thing is I had another set of rcas running along the same route that were cheaper, and there was noise hah. Definitely proved what everybody was saying about not running them next to the power wire. I later rerouted that rca pair along with the good one. Even though the good one doesn't have noise, I just figure I do it the optimal way. So since then I never ran them together on future installs. If you have no choice however, then the "good" rca cables are actually worth the extra buck.

Off the topic there but wanted to confirm what bobby claimed as well.

As for the OP, did you find the problem?

 

[Defiant]

Yes, I am using the factory amp.

Lose it. Anything built since 2000 has three times the output from the head unit. Just wire straight to the speakers from the loom in the console.

 

[mikEclipse99]

this happened to me. it was quite annoying haha. i changed where i grounded my wire and it stopped