Ah great now I have interference!

Hit Man X · 09-25-2001, 02:32 PM

This is only when the car is on not off, so I guess a ground may be loose. It'd be nice to know before going off on a wild goose chase

FunFordCobra · 09-27-2001, 08:08 AM

Some times your MSD box can make ALOT of raido noise if you dont have it hooked up right.

Hit Man X · 09-27-2001, 11:03 PM

It appears in order, both the 6AL and the 8975 retard box. Should I just check the wiring or...?

FunFordCobra · 09-28-2001, 09:50 AM

If all the wires are right on your boom and msd,
another possibility is that you have your rca's run too close to power or ground wire.
The way you can tell is if you have sub noise but the speakers that are hooked directally up to the raido.........
I always run the power wire on the same side of the battery and rca on the opposite with no more than 2 feet of ground cable..
Check for frays in the wires....

Hit Man X · 09-28-2001, 12:30 PM

My RCA's are 3' long. The preouts are now in the trunk b/c of the DSP. Ummm, think I should hold the RCA's up from the ground wires?

Slow90Vert · 09-29-2001, 10:49 AM

The RCA's cannot be within 24'' from either the ground or power wires......Also you should have a wire similar in size to you turn on lead running from the ground on the amp to the ground that the receiver is using that way you have a parallel ground at that helps reduce interference, also what kind of ground and power wire are you using because I have had probelms with interference when I used a crappy brand of wire. Plus your radio could be the piece of equipment that is picking up the interference. Let me if you have any more questions.

Slow90Vert · 09-29-2001, 10:54 AM

Also forgot to mention that your RCA cables could have a pinch in the insulation and that causes them to pick up pink noise (interference).

KOZMO · 10-01-2001, 03:28 PM

i once had that problem but i fixed it... by buying a new amp. The amp just was gettin outta shape. It could also be that you dont have a solid ground, or what all those other peeps said. ;-)

Hit Man X · 10-01-2001, 04:56 PM

I have Phoenix Gold wiring.
How whould the head unit pick up interference? Remeber this only happens when the car is on too.

FunFordCobra · 10-02-2001, 08:09 AM

it really sounds like an ignition feed back noise.
They have filters but it wont help if its comming from your msd.

Hit Man X · 10-02-2001, 03:04 PM

I also hear a bit of alternator whine too...
Think I should try a filter?

09-25-2001, 02:32 PM	#1
Hit Man X Out with your mom Join Date: Feb 2001 Location: Mansfield, Texas, USA Posts: 2,508	Ah great now I have interference! This is only when the car is on not off, so I guess a ground may be loose. It'd be nice to know before going off on a wild goose chase __________________ Living, the only thing worth dying for. "It is not what he has which directly expresses the worth of a man, but what he is."- Henri Frederic Amiel '88 F150, '01 Z71, '85 BMW 745i Turbo, '79 280S Benz, '85 300SD Benz, '86 420SEL Benz, '87 300SDL Benz (severely in need of updating, around 14 vehicle current) I have red hair

09-27-2001, 11:03 PM	#3
Hit Man X Out with your mom Join Date: Feb 2001 Location: Mansfield, Texas, USA Posts: 2,508	It appears in order, both the 6AL and the 8975 retard box. Should I just check the wiring or...? __________________ Living, the only thing worth dying for. "It is not what he has which directly expresses the worth of a man, but what he is."- Henri Frederic Amiel '88 F150, '01 Z71, '85 BMW 745i Turbo, '79 280S Benz, '85 300SD Benz, '86 420SEL Benz, '87 300SDL Benz (severely in need of updating, around 14 vehicle current) I have red hair

09-28-2001, 12:30 PM	#5
Hit Man X Out with your mom Join Date: Feb 2001 Location: Mansfield, Texas, USA Posts: 2,508	My RCA's are 3' long. The preouts are now in the trunk b/c of the DSP. Ummm, think I should hold the RCA's up from the ground wires? __________________ Living, the only thing worth dying for. "It is not what he has which directly expresses the worth of a man, but what he is."- Henri Frederic Amiel '88 F150, '01 Z71, '85 BMW 745i Turbo, '79 280S Benz, '85 300SD Benz, '86 420SEL Benz, '87 300SDL Benz (severely in need of updating, around 14 vehicle current) I have red hair

10-01-2001, 04:56 PM	#9
Hit Man X Out with your mom Join Date: Feb 2001 Location: Mansfield, Texas, USA Posts: 2,508	I have Phoenix Gold wiring. How whould the head unit pick up interference? Remeber this only happens when the car is on too. __________________ Living, the only thing worth dying for. "It is not what he has which directly expresses the worth of a man, but what he is."- Henri Frederic Amiel '88 F150, '01 Z71, '85 BMW 745i Turbo, '79 280S Benz, '85 300SD Benz, '86 420SEL Benz, '87 300SDL Benz (severely in need of updating, around 14 vehicle current) I have red hair

10-02-2001, 03:04 PM	#11
Hit Man X Out with your mom Join Date: Feb 2001 Location: Mansfield, Texas, USA Posts: 2,508	I also hear a bit of alternator whine too... Think I should try a filter? __________________ Living, the only thing worth dying for. "It is not what he has which directly expresses the worth of a man, but what he is."- Henri Frederic Amiel '88 F150, '01 Z71, '85 BMW 745i Turbo, '79 280S Benz, '85 300SD Benz, '86 420SEL Benz, '87 300SDL Benz (severely in need of updating, around 14 vehicle current) I have red hair

09-27-2001, 08:08 AM	#2
FunFordCobra Dead Join Date: Jul 2001 Location: Cybertron Posts: 5,289	Some times your MSD box can make ALOT of raido noise if you dont have it hooked up right.

09-28-2001, 09:50 AM	#4
FunFordCobra Dead Join Date: Jul 2001 Location: Cybertron Posts: 5,289	If all the wires are right on your boom and msd, another possibility is that you have your rca's run too close to power or ground wire. The way you can tell is if you have sub noise but the speakers that are hooked directally up to the raido......... I always run the power wire on the same side of the battery and rca on the opposite with no more than 2 feet of ground cable.. Check for frays in the wires....

09-29-2001, 10:49 AM	#6
Slow90Vert Punk Ass Newbie Join Date: Jan 2001 Location: Keller, TX, USA Posts: 65	The RCA's cannot be within 24'' from either the ground or power wires......Also you should have a wire similar in size to you turn on lead running from the ground on the amp to the ground that the receiver is using that way you have a parallel ground at that helps reduce interference, also what kind of ground and power wire are you using because I have had probelms with interference when I used a crappy brand of wire. Plus your radio could be the piece of equipment that is picking up the interference. Let me if you have any more questions.

09-29-2001, 10:54 AM	#7
Slow90Vert Punk Ass Newbie Join Date: Jan 2001 Location: Keller, TX, USA Posts: 65	Also forgot to mention that your RCA cables could have a pinch in the insulation and that causes them to pick up pink noise (interference).

10-01-2001, 03:28 PM	#8
KOZMO B-WIZ Join Date: Sep 2001 Location: There's a huge chance I've been registered longer than you. Posts: 1,727	i once had that problem but i fixed it... by buying a new amp. The amp just was gettin outta shape. It could also be that you dont have a solid ground, or what all those other peeps said. ;-)

10-02-2001, 08:09 AM	#10
FunFordCobra Dead Join Date: Jul 2001 Location: Cybertron Posts: 5,289	it really sounds like an ignition feed back noise. They have filters but it wont help if its comming from your msd.

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