Radio Interference With Headlamps On - Defender Source
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  #1  
Old January 25th, 2009, 05:29 PM
Haston
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Christopher Petite
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Radio Interference With Headlamps On

Trying to resurrect the interior of a 97 SW. I installed new Kappa speakers in the front doors (twice since I negelected to make sure the windows could roll down with the new speakers in place). Everything tested out fine except that when I turn the headlights on, I get a wicked buzzing noise over the audio. Any guesses on a good fix? H.
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  #2  
Old January 25th, 2009, 05:55 PM
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Hans Haase
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Specifically with the radio? or also with CD playing?

-Hans
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  #3  
Old January 25th, 2009, 07:43 PM
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Christopher Petite
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Buzzes on cd as well, but less pronounced-- but, again, only when the parking lamps and headlights are engaged. The original amp and cd changer are no longer with the truck.

Follow-up Post:

Additional information that outlines the problem and my futility:

when the driver's side speakers are unhooked, the buzzing goes away.

Presumably, I have to start chasing ground wires.

If I were to use a filter or capicitor, where would I put it?
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  #4  
Old January 25th, 2009, 08:17 PM
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shane cates
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Grounded to the same location????????
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  #5  
Old January 25th, 2009, 08:40 PM
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Andrew Najarian
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Did you run new speaker wires or did you reuse the original ones?
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  #6  
Old January 25th, 2009, 09:00 PM
Haston
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Christopher Petite
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I used the original wires. Previous owner had unhooked the driver's side wires. (Perhaps now I know why.)
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  #7  
Old January 27th, 2009, 08:49 PM
Haston
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Christopher Petite
97 D90 SW
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I managed to figure out that I had unwittingly crossed a pair of speaker wires. Incidentally, I was set on the right track by the common sense of those kind enough to respond to my plea, as well as the following link on supressing stereo noise/interference:

http://www.termpro.com/articles/noise.html

All best. H.
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  #8  
Old January 27th, 2009, 10:58 PM
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Andrew Najarian
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Do D90's share the speaker grounds in OE setup? Are you still using the original amp?
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  #9  
Old January 28th, 2009, 09:47 AM
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Gary
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[QUOTE=Stmpede]Do D90's share the speaker grounds in OE setup? [QUOTE]

I've wondered about this same question as well.
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  #10  
Old January 28th, 2009, 11:09 AM
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Christopher Petite
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Nothing in my system is original, for better or worse. I've yet to trace all the loose wires in the harness, as it;s a spaghetti mess.
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