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Old 05-29-2013, 12:52 PM
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HID fogs interfering with FM signal???

Ive noticed that when ever i have my fog lights on it interferes with my FM signal on the radio and an FM transmitter... lots of static and it goes away when i turn my fog lights off? Didnt notice it before i installed my HIDs... I also have a shorty antenna installed, anyone else run into this problem??? Anyone know what would cause this? Location of ballast installation? Or because the fogs are reverse polarity?
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Old 06-03-2013, 11:36 AM
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Re: HID fogs interfering with FM signal???

anybody?
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Old 06-03-2013, 11:39 AM
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We rarely get the kind of fog that requires using fog lights, so I can't provide any feedback.
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Old 06-03-2013, 12:21 PM
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Re: HID fogs interfering with FM signal???

what brand HID's do you have? Sounds like they dont have the EMI filter and are interferring with your radio signal.
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Old 06-03-2013, 12:33 PM
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Old 06-03-2013, 12:46 PM
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Re: HID fogs interfering with FM signal???

hmmm...surely those have the filters. They sell a lot of kits.Im not familiar with them though...I only use Xenondepot stuff.
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Old 06-04-2013, 09:14 AM
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Re: HID fogs interfering with FM signal???

I had the same thing. I also have a shorty antenna. My radio reception with the shorty is not as good as the stock regardless of whether I have lights on or not. When I would turn on my HID fogs I could hear the electrical interference. I ended up taking out my HID fogs because I didn't like the way they looked anymore. Thus, I no longer have an issue except when listening to AM radio with the shorty antenna which sucks pretty bad.

I would suggest quickly removing your shorty and putting the stock on to see if you still have the problem. If it's not as bad or non-existant you know the shorty is a cause. If it's still there, I don't think there's much you can do. I know it is not required, but are you using a relay with your fogs? If not, adding one may help.
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Old 06-04-2013, 11:24 AM
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Ok ill try that... and no relay with the fogs but i have one for headlights
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Old 06-07-2013, 02:12 PM
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Re: HID fogs interfering with FM signal???

I can't speak for other HID kits but our ballasts have EMI filters to prevent this from happening.

Steve
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