ATTN: Those with new headunits in mach 460

C

cgrant

New Member

Dec 6, 2003

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Feb 16, 2004

#1

• Feb 16, 2004

• #1

For those of you that replaced the head unit in your mach 460 to an aftermarket deck. Do you get this high-pitched frequency noise coming out of your speakers everytime you turn the car on and the deck turns on? I got a wire harness from site on sound, they special ordered it, said its special for the mach 460 and I get this high pitched squeal everytime. This other guy I know has the same problem.

Is this fixable? Do you guys have this too? If not, which harness WON'T do this?

Thanks !

 

krly79

Member

May 6, 2003

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VA Beach & So Illinois

Feb 16, 2004

#2

• Feb 16, 2004

• #2

is it like a whine? If so then it sounds like the audio lines are run with a power, which will cause a whine through your speakers. just an idea

 

C

cgrant

New Member

Dec 6, 2003

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Feb 16, 2004

#3

• Feb 16, 2004

• #3

krly79 said:

is it like a whine? If so then it sounds like the audio lines are run with a power, which will cause a whine through your speakers. just an idea

Click to expand...

It's not the same noise everytime. Its a loud, high pitched squeaky noise accompanied with a "blip" sometimes. It is really strange.

 

Blev

New Member

Aug 17, 2003

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So. Cal. V-Town

Feb 16, 2004

#4

• Feb 16, 2004

• #4

cgrant said:

For those of you that replaced the head unit in your mach 460 to an aftermarket deck. Do you get this high-pitched frequency noise coming out of your speakers everytime you turn the car on and the deck turns on? I got a wire harness from site on sound, they special ordered it, said its special for the mach 460 and I get this high pitched squeal everytime. This other guy I know has the same problem.

Is this fixable? Do you guys have this too? If not, which harness WON'T do this?

Thanks !

Click to expand...

I just did a thread about the Mach 460 head unit. The harness I used was 20 bucks and I don't have ANY distortion/noise/backfeed. It's by Metra part # 70-5511. I picked it up at Best Buy for about 20 bucks.

 

hognutz

New Member

Nov 12, 2002

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albany, oregon

Feb 16, 2004

#5

• Feb 16, 2004

• #5

I would bet it has to do with the fact you there are factory amps in the system. if you wire a powered output to an amplifier input you can have some issues. you can overdrive the input so to speak. the harness you bought may be a pos. you could proably figure something out yourself. if you took the rca ouput from you deck and wired it to the factory amps it may work better.

 

2

2kyellowgt

New Member

Feb 10, 2003

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Nanuet, NY

Feb 16, 2004

#6

• Feb 16, 2004

• #6

I have the same problem with the whine noise. I was told that is a bad ground from the wiring harness. what I was told to do was hook up a direct chasis ground to the back of the radio and it should solve the problem, I just havent done it yet.

If you do it let me know if it works.

 

M

mhissticobra

Member

Feb 12, 2004

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Feb 16, 2004

#7

• Feb 16, 2004

• #7

Road noise

 

COramprat

...I can take it. I think.

20+ Year Stangneter

Mar 2, 2003

8,474

1,463

223

Sea of Tranquility

Feb 16, 2004

#8

• Feb 16, 2004

• #8

Never had that with mine...I have the interface adapter from Scosche to the harness and then to the stock plug.

http://www.sounddomain.com/sku/SCOFAI3

 

xomp

Founding Member

Sep 8, 2002

91

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SOCAL

Feb 16, 2004

#9

• Feb 16, 2004

• #9

if you use the harness, which puts powered output into the stock amp, it will create a lot of noise.
after i got an amp bypass for mine the noise was gone.
basically wut hognutz said.