Technical Alternator whine

vtec-hungry · 17th August 2007, 20:25

whine? I have a sound system fitted in my current crappy car and theres a very annoying sound that comes from the speaker when I crank up the vol, is this the same thing? could you explain the origin a bit clearer as i know jack about installing them

Type S Bournemouth · 17th August 2007, 20:53

what he means by engine whine is when you accelerate you sort of get a mimicking whining sound of the engine through the car speakers and i know how annoying it is as had it before on a previous car.

Nick7 · 17th August 2007, 21:53

What Type S Bournemoth said.
It's sound that raises pitch as engine rpm's increase. You can hear it even if the music level is set to 0.
However, about annoying sound you mention - I don't have that.

vtec-hungry · 17th August 2007, 23:26

YES thats it! i keep asking around and people think its my amp and its normal! any idea how to get rid of it??? I just cant stand it anymore, and im planning on fitting an amp to my ctr when i get it and the last thing i want is that same whine driving me insane

FWH · 18th August 2007, 06:55

Quote:

Originally Posted by vtec-hungry

YES thats it! i keep asking around and people think its my amp and its normal! any idea how to get rid of it??? I just cant stand it anymore, and im planning on fitting an amp to my ctr when i get it and the last thing i want is that same whine driving me insane

It is not an uncommon problem.
It is usually some kind of grounding issue.

The exact problem and solution can vary from installation to installation.

Pottsy · 18th August 2007, 07:41

alternator whine

Bog · 18th August 2007, 12:59

I had this when I did my connects2 (Aux in) install, especially when I plugged an audio source into the ciggy plug. I bought a 'Grond Loop Isolator' from Maplin, it was £8.99 and solved the problem.

http://www.maplin.co.uk/Search.aspx?criteria=ground%20loop&source=15&SD=Y

Hope this helps.

vtec-hungry · 19th August 2007, 09:43

no i dont have a aux coonector, just replaced cd player, new amp, sub, and constant whine, is there any other quick possible solutions?

Nick7 · 19th August 2007, 10:08

vtec-hungry, here are some ways of trying to fix engine whine.

vtec-hungry · 19th August 2007, 17:05

check grouding from amp, and rca connections are properly installed, still got the whine

Pottsy · 19th August 2007, 20:24

Vtec - you will probably have to move the place that the amp ground wire is connected to the car. Try and get it somewhere up front - I would start near the fusebox on the drivers side. I shall do some more looking later for you.

vtec-hungry · 19th August 2007, 21:56

Quote:

Originally Posted by Pottsy

Vtec - you will probably have to move the place that the amp ground wire is connected to the car. Try and get it somewhere up front - I would start near the fusebox on the drivers side. I shall do some more looking later for you.

I got some car audio people to install it (btw this is on my bmw at the mo), i checked today and the ground is near the fuse box, im not really an expert at these things but i want to learn (ready for my future ctr

)

vtec-hungry · 19th August 2007, 21:59

actually planning ripping the damn thing out and reinstalling the whole thing myself but I cant find where the cable goes from battery to amp (in the boot) the power cable just dissapears in a mass of mess behinf the battery!) plus I think the rcas are under the carpet! damn really need to learn these things!

vtec-hungry · 19th August 2007, 22:00

I been reading the infinity speaker thread, can you power these speakers without a external amp? also will it work on the ctr?

FWH · 20th August 2007, 19:39

Quote:

Originally Posted by vtec-hungry

I been reading the infinity speaker thread, can you power these speakers without a external amp? also will it work on the ctr?

Yes, I think just about everyone has fitted these without an amp.
That is what I am planning to do also.

Should work equally well in the CTR - arent the insides of the door exactly the same (as an S Type at least)?

Bog · 21st August 2007, 10:04

Quote:

Originally Posted by Bog

I had this when I did my connects2 (Aux in) install, especially when I plugged an audio source into the ciggy plug. I bought a 'Grond Loop Isolator' from Maplin, it was £8.99 and solved the problem.

Maplin > Ground Loop Isolator

Hope this helps.

I did not explain what I was thinking very well did I

What I thought was..... If you do go down the route of taking the dash apart and sorting it yourself, and if Pottsy's suggestion of moving the ground point, you could use the ground loop isolator by cutting off the RCA plugs and connecting it between the HU and your amp (I assume you Amp taps into the speaker out connections/wires of the HU).

This diagram of the Isolator might help to explain what I mean...

Presentation1.jpg

Not to expensive either.

vtec-hungry · 21st August 2007, 11:02

Quote:

Originally Posted by FWH

Yes, I think just about everyone has fitted these without an amp.
That is what I am planning to do also.

Should work equally well in the CTR - arent the insides of the door exactly the same (as an S Type at least)?

not sure, think it might b

Nick7 · 21st August 2007, 13:09

Bog, that's more-less how LOC's look too..

Bog · 21st August 2007, 13:52

Quote:

Originally Posted by Nick7

Bog, that's more-less how LOC's look too..

Whats a LOC?

I've just read the caraudio.com link you posted earlier on in thread, that's quite interesting.

They don't recommend Ground Loop Isolators, as the state they only mask the problem - but if it works, what does it matter?

Nick7 · 24th August 2007, 08:41

LOC - Line Out Converter -> used to convert high output of HU (one you connect to speakers) to RCA output.

17th August 2007, 20:25	#1 (permalink)
vtec-hungry Triangular Exhaust Join Date: 17th August 2007 Location: Blackpool Posts: 408 Thanks: 0 Thanked 0 Times in 0 Posts	Alternator whine whine? I have a sound system fitted in my current crappy car and theres a very annoying sound that comes from the speaker when I crank up the vol, is this the same thing? could you explain the origin a bit clearer as i know jack about installing them

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This thread is about: Alternator whine, it's in Ipods, MP3 Players and ICE at the Honda Civic forum Civinfo; whine? I have a sound system fitted in my current crappy car and theres a very annoying sound that comes from the speaker when I ...

17th August 2007, 20:53	#2 (permalink)
Type S Bournemouth Supporter Magic Rear Seat Join Date: 3rd October 2006 Location: Bournemouth Posts: 958 Thanks: 0 Thanked 0 Times in 0 Posts	what he means by engine whine is when you accelerate you sort of get a mimicking whining sound of the engine through the car speakers and i know how annoying it is as had it before on a previous car.

17th August 2007, 21:53	#3 (permalink)
Nick7 Supporter Triangular Exhaust Join Date: 10th August 2006 Location: Croatia Posts: 440 Thanks: 0 Thanked 1 Time in 1 Post	What Type S Bournemoth said. It's sound that raises pitch as engine rpm's increase. You can hear it even if the music level is set to 0. However, about annoying sound you mention - I don't have that.

17th August 2007, 23:26	#4 (permalink)
vtec-hungry Triangular Exhaust Join Date: 17th August 2007 Location: Blackpool Posts: 408 Thanks: 0 Thanked 0 Times in 0 Posts	YES thats it! i keep asking around and people think its my amp and its normal! any idea how to get rid of it??? I just cant stand it anymore, and im planning on fitting an amp to my ctr when i get it and the last thing i want is that same whine driving me insane

18th August 2007, 07:41	#6 (permalink)
Pottsy Administrator Civinfo guru Join Date: 10th April 2006 Location: Leics Posts: 4,760 Thanks: 7 Thanked 61 Times in 32 Posts	alternator whine

18th August 2007, 12:59	#7 (permalink)
Bog Supporter Magic Rear Seat Join Date: 5th October 2006 Location: Romford, Essex Posts: 886 Thanks: 0 Thanked 1 Time in 1 Post	I had this when I did my connects2 (Aux in) install, especially when I plugged an audio source into the ciggy plug. I bought a 'Grond Loop Isolator' from Maplin, it was £8.99 and solved the problem. http://www.maplin.co.uk/Search.aspx?criteria=ground%20loop&source=15&SD=Y Hope this helps.

19th August 2007, 09:43	#8 (permalink)
vtec-hungry Triangular Exhaust Join Date: 17th August 2007 Location: Blackpool Posts: 408 Thanks: 0 Thanked 0 Times in 0 Posts	no i dont have a aux coonector, just replaced cd player, new amp, sub, and constant whine, is there any other quick possible solutions?

19th August 2007, 10:08	#9 (permalink)
Nick7 Supporter Triangular Exhaust Join Date: 10th August 2006 Location: Croatia Posts: 440 Thanks: 0 Thanked 1 Time in 1 Post	vtec-hungry, here are some ways of trying to fix engine whine.

19th August 2007, 17:05	#10 (permalink)
vtec-hungry Triangular Exhaust Join Date: 17th August 2007 Location: Blackpool Posts: 408 Thanks: 0 Thanked 0 Times in 0 Posts	check grouding from amp, and rca connections are properly installed, still got the whine

19th August 2007, 20:24	#11 (permalink)
Pottsy Administrator Civinfo guru Join Date: 10th April 2006 Location: Leics Posts: 4,760 Thanks: 7 Thanked 61 Times in 32 Posts	Vtec - you will probably have to move the place that the amp ground wire is connected to the car. Try and get it somewhere up front - I would start near the fusebox on the drivers side. I shall do some more looking later for you.

19th August 2007, 21:59	#13 (permalink)
vtec-hungry Triangular Exhaust Join Date: 17th August 2007 Location: Blackpool Posts: 408 Thanks: 0 Thanked 0 Times in 0 Posts	actually planning ripping the damn thing out and reinstalling the whole thing myself but I cant find where the cable goes from battery to amp (in the boot) the power cable just dissapears in a mass of mess behinf the battery!) plus I think the rcas are under the carpet! damn really need to learn these things!

19th August 2007, 22:00	#14 (permalink)
vtec-hungry Triangular Exhaust Join Date: 17th August 2007 Location: Blackpool Posts: 408 Thanks: 0 Thanked 0 Times in 0 Posts	I been reading the infinity speaker thread, can you power these speakers without a external amp? also will it work on the ctr?

21st August 2007, 13:09	#18 (permalink)
Nick7 Supporter Triangular Exhaust Join Date: 10th August 2006 Location: Croatia Posts: 440 Thanks: 0 Thanked 1 Time in 1 Post	Bog, that's more-less how LOC's look too..

24th August 2007, 08:41	#20 (permalink)
Nick7 Supporter Triangular Exhaust Join Date: 10th August 2006 Location: Croatia Posts: 440 Thanks: 0 Thanked 1 Time in 1 Post	LOC - Line Out Converter -> used to convert high output of HU (one you connect to speakers) to RCA output.