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Electrical problems are not sexy

  • Thread starter Thread starter 68conv4sp
  • Start date Start date Dec 6, 2007
6

68conv4sp

New Member
Oct 24, 2005
270
0
0
Dec 6, 2007
#1
  • Dec 6, 2007
  • #1
Unlike cool projects that boost horsepower, handling, etc., my electrical problem is not a fun challenge. Basically, when I turn on my stereo (head unit and amp), engine on or off, there is a clicking/buzzing that comes thru the speakers. Increasing the volume does drown out the noise. I know very little about troubleshooting wiring. Is this the place to ask for help or is there a better place in Stang Net? Thanks for your ideas.
 

enferno

Member
Jun 20, 2006
418
2
16
Dec 6, 2007
#2
  • Dec 6, 2007
  • #2
could be that you blew a channel on the stereo, or the speakers, or something is fried inside the stereo.

did you fuse it when you installed it? what are you using for speaker wire?
 

hhead

Founding Member
Jul 13, 2002
280
0
17
so cal
Dec 6, 2007
#3
  • Dec 6, 2007
  • #3
could be electrical interference.
http://www.indiacar.com/infobank/car_radio.htm
 

Route666

Active Member
Aug 16, 2003
1,652
6
39
Brisbane, Australia
Dec 7, 2007
#4
  • Dec 7, 2007
  • #4
I vote for electrical interferance - you can get a suppressor for the ignition system (or somewhere in the electrics) that gets rid of that.
 

NasaGT

Founding Member
Sep 19, 2002
1,993
2
49
Virginia
Dec 7, 2007
#5
  • Dec 7, 2007
  • #5
He said it happens engine off, so that rules out ignition based electrical interference. Bad ground is the first thing I would check for.
 

Tim65GT

Active Member
Feb 24, 2004
1,149
2
39
West Texas
Dec 7, 2007
#6
  • Dec 7, 2007
  • #6
enferno
could be that you blew a channel on the stereo, or the speakers, or something is fried inside the stereo.
Click to expand...

I tend to agree with enferno. I wouldn't rule out the amp either.

Since the noise goes away with volume, I doubt it's a ground and if it's still present when the engine is off, that eliminates the ignition or charging system.
 
S

suki243

Member
Dec 19, 2006
662
0
19
Southern California
Dec 7, 2007
#7
  • Dec 7, 2007
  • #7
I had a similar problem, it ended up being my head unit, it was older and cheap, but when i hooked a mp3 player up to the amp decent sounding music came out, without static or distortion
 

BullittStangV8

Founding Member
Oct 5, 2002
1,104
0
36
NJ
Dec 7, 2007
#8
  • Dec 7, 2007
  • #8
Did you run the power wire near a speaker wire?
 
6

68conv4sp

New Member
Oct 24, 2005
270
0
0
Dec 7, 2007
#9
  • Dec 7, 2007
  • #9
Thanks for the good responses. I spent time looking at it detail last night and, yes, the power wire is run next to a speaker wire. So one of those should be relocated?
As for ensuring good ground, the amp will be easy to check as the wires are easy to find/see. The head unit wires are buried behind it, so I'm not sure how to check 'em without pulling the unit (have not done so before).
Is there electrical noise supression stuff that I should be trying somewhere even if the noise is present with the motor off? Thanks again.
 

Route666

Active Member
Aug 16, 2003
1,652
6
39
Brisbane, Australia
Dec 7, 2007
#10
  • Dec 7, 2007
  • #10
NasaGT said:
He said it happens engine off, so that rules out ignition based electrical interference. Bad ground is the first thing I would check for.
Click to expand...

BOH! I should read more betterer.
 
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