The 1947 - Present Chevrolet & GMC Truck Message Board Network







Register or Log In To remove these advertisements.

Go Back   The 1947 - Present Chevrolet & GMC Truck Message Board Network > 47 - Current classic GM Trucks > The 1967 - 1972 Chevrolet & GMC Pickups Message Board

Web 67-72chevytrucks.com


Reply
 
Thread Tools Display Modes
Old 04-25-2002, 10:00 PM   #1
bamaK5
Registered User
 
Join Date: Mar 2002
Location: Jasper, AL USA
Posts: 19
Post Radio Static Noise(HELP)

My friends new stereo has a bad static noise. The noise is there when the car is running but not just when the switch is in the on position. This is through his amp, not the regular speakers. Can somebody please help us.

------------------
1971 K5 Blazer 307 3sp/205(project)
__________________
1971 K5 Blazer 307 3sp/205(project)
bamaK5 is offline   Reply With Quote
Old 04-25-2002, 10:05 PM   #2
Longhorn Man
its all about the +6 inches
 
Longhorn Man's Avatar
 
Join Date: Jan 2001
Location: Hilliard Ohio
Posts: 2,693
Post

Try finding a better ground on the amp, if that don't work, a noise filter that goes on the main power wire will fix it.

------------------
'69 G.M.C. 350/350. Trying to clean up the left over damage from the Dope-Smokin-Old-Man
I've been dubbed the Longhorn Freak/Fanatic/Expert, I just hope I can live up to it.
FINALLY got the HORNIAC...a '70 one ton Longhorn with a Pontiac 350/350 and lots of 'personality'. Check out The Longhorn Webite.
If you need a pic posted, E-mail me at longhornmail@yahoo.com
Andy, in Columbus Ohio


Longhorn Man is offline   Reply With Quote
Old 04-25-2002, 10:07 PM   #3
Big69C20 Toy
Livin' it up.
 
Big69C20 Toy's Avatar
 
Join Date: Nov 2001
Location: Richland, MI
Posts: 2,212
Post

You are getting either electrical interference or having issues with a "good" ground. Did he run the RCA wires next to power wires? if he did that's a big no no. Aside from that running any sort of powered lines near a rca is bad. hope this helps some. good luck.

------------------
69 Custom 20, 396BB,Longbed fleetside.
New Oak Bed With SS strips... damn nice.

Edelbrock performer RPM-O, Edelbrock 750Carb, Headers, HEI, 2 40" glasspacks.
Stereo: Classic-style tape deck/radio, 2 6x9 Cerwin Vega's in doors, 2 10" Neo subs under seats, 1 900 Watt amp.

SN= Ares220

__________________
-Greg;
Sold the 69 C20. It's off to a better home with more love!
Now onto the 86 CUCV M1009; K5 blazer with 6.2L diesel, corp 10 bolt axles, Detroit locker in the rear, trutrac front, 3.73 gears, 35" tires.
Big69C20 Toy is offline   Reply With Quote
Old 04-25-2002, 10:11 PM   #4
Longhorn Man
its all about the +6 inches
 
Longhorn Man's Avatar
 
Join Date: Jan 2001
Location: Hilliard Ohio
Posts: 2,693
Post

I did not know bout the power wires by the RCA....good info.

------------------
'69 G.M.C. 350/350. Trying to clean up the left over damage from the Dope-Smokin-Old-Man
I've been dubbed the Longhorn Freak/Fanatic/Expert, I just hope I can live up to it.
FINALLY got the HORNIAC...a '70 one ton Longhorn with a Pontiac 350/350 and lots of 'personality'. Check out The Longhorn Webite.
If you need a pic posted, E-mail me at longhornmail@yahoo.com
Andy, in Columbus Ohio


Longhorn Man is offline   Reply With Quote
Old 04-25-2002, 11:49 PM   #5
Big69C20 Toy
Livin' it up.
 
Big69C20 Toy's Avatar
 
Join Date: Nov 2001
Location: Richland, MI
Posts: 2,212
Post

Yep electrical interference is a biatch. I've wired up a few vehicles and some just have some inherent line noise, in those cases it dont matter how you run the wire, just gotta get a line filter. For others you can just re-route things. Right now the only problem i'm having is my dang subs are going outa phase when i have the amp at anything above minimum power for the subs (4 channel) funky stuff and i dont get it since they are 4ohm subs. Going outa phase bites.

------------------
69 Custom 20, 396BB,Longbed fleetside.
New Oak Bed With SS strips... damn nice.

Edelbrock performer RPM-O, Edelbrock 750Carb, Headers, HEI, 2 40" glasspacks.
Stereo: Classic-style tape deck/radio, 2 6x9 Cerwin Vega's in doors, 2 10" Neo subs under seats, 1 900 Watt amp.

SN= Ares220

__________________
-Greg;
Sold the 69 C20. It's off to a better home with more love!
Now onto the 86 CUCV M1009; K5 blazer with 6.2L diesel, corp 10 bolt axles, Detroit locker in the rear, trutrac front, 3.73 gears, 35" tires.
Big69C20 Toy is offline   Reply With Quote
Old 04-26-2002, 07:30 AM   #6
Blazer1970
Registered User
 
Blazer1970's Avatar
 
Join Date: Dec 1999
Location: Old Mission, MI, USA
Posts: 2,510
Post

What kind of amp does he have? The cheap ones tend to pass the ignition noise through like that. Buy a quality amp, and no problems.

------------------
Tim


[This message has been edited by Blazer1970 (edited April 26, 2002).]
__________________
Tim
Blazer1970 is offline   Reply With Quote
Old 04-27-2002, 06:54 AM   #7
bobs409
1969 Custom 30 wrecker
 
bobs409's Avatar
 
Join Date: Sep 2001
Location: Pottsville, Pa
Posts: 2,611
Exclamation

I just solved this same problem with my '69 Chevelle yesterday. Turned out that I forgot to add a ground to the case of the stereo. The '69 Chevelle has the plastic dash where the stereo mounts so it was only getting grounded through the speakers.

Worth a shot anyhow. Mine sounds great now!

------------------
63 Impala*66 Chevelle SS*69 Chevelle*69 C10 Stepside*71 Cheyenne 20*72 Chevelle

Parts for sale:
http://www.angelfire.com/trek/mr409/items4sale.html

__________________
Bob

63 Impala 283/PG/3.36 (under restoration)
66 Impala 327/PG/3.36
66 Chevelle SS 409/M22/3.55
69 Chevelle 307/PG/3.08 (future restoration)
69 C10 short stepside 454/TH350/3.73
69 Custom 30 tow truck 350/4 spd/4.10 (resto done, CRUISIN TIME!)
71 Cheyenne 20 fleetside 350/4 spd/4.10
71 Chevelle 6/PG/3.08
72 Chevelle 454/M21/4.10
bobs409 is offline   Reply With Quote
Reply

Bookmarks


Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off

Forum Jump


All times are GMT -4. The time now is 08:55 AM.


Powered by vBulletin® Version 3.8.11
Copyright ©2000 - 2024, vBulletin Solutions Inc.
Copyright 1997-2022 67-72chevytrucks.com