Elantra HD (2006-10) :: Radio Static When Rear Window Defroster On?
May 12, 2011
I own a 2008 Elantra
So for a while now I have noticed that I often have a great deal of static on my radio during my ride to work. I was stumped because it only happened occasionally and affected every channel, AM and FM. Today I discovered what was changing to cause the static. Whenever I have the rear window defroster on, there is static on the radio. Turning the rear defroster off, stops the static immediately. I have checked all other electric devices in conjunction with the radio, and it is only caused by the defroster. My understanding is that the antenna is built into the rear window, so the cause and effect seems obvious.
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My radio has great FM reception except when I turn on the rear wndow defroster. When I do, the radio sounds faint and crackly as though I were listening to a very distant station. As soon as I turn off the defroster, the reception comes back to normal. This is on a '09 Sonata limited - this did not happen on my previous '08 Azera and '06 Sonata LX...
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So I have the dreaded "rear defroster/radio static interference" issue on my 2011 Corolla LE. I turn on my radio and all is good. I turn on my rear window defroster and my FM reception goes away.I am pretty sure I did it to myself because it only started happening after I cleaned the rear window with some windshield washing fluid and a paper towel. I do have a knack for being a bit gruff on things and people unintentionally so I guess I am not surprised. I must have damaged the elements of the rear defroster in the process of cleaning the window. I should have left it dirty.
Anyway, I've read many posts detailing how breaks in the rear defroster grid can introduce EMI that effects the factory radio antennae in the rear window. Some of the answers I have seen suggested are:
1) replace the rear window (really?)
2) use a repair kit. URL...
3) completely replace the the rear defroster grid with an after market kit. URL...
4) replace the factory antennae with an after market unit that is not internally mounted
5) live with it
Are there any other options that I haven't found? If the root cause is the rear defroster, the repair kit seems like the way to go (even if it looks like an annoying task to perform upside down in such tight and cramped spaces). Might fix the defroster if its broken but will it resolve the EMI problem ...
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I have a 2007 Honda Civic 2 dr. A couple years ago the manufacturer cell phone charger was blown in a few days of use with the cigarette lighter. The manufacturer replacement was next blown, and then a cheap off-brand was blown. Last fall, turning on the rear defroster began causing static interference on the FM stations. Several months later, I noticed that use of the cigarette lighter as a cell phone charger also caused radio static.
Next week, the rear windshield will be removed and replaced during a body repair. Should I ask for a replacement windshield, or just for attention to the connection with the electric? What else can be done about either of these causes of FM static?
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At some point in time I noticed that when I turn on the rear defroster a hiss develops in my (factory-installed) radio, operating on the FM band. Most of the time this hiss is strong enough to mask the audio entirely. I noticed, too, that one or possibly two "printed wires" in the rear window may no longer be operating; however, I don't know whether this is connected to the hiss problem.
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I just purchased a 2009 gs 350 a few months ago with 40k on it fully certified. I quickly noticed that most of the fm radio stations were static even local ones that I usually listen to all the time. Some stations would go in and out of static but too annoying for me to deal with. Ive tried turning random things on and off to see if it changes the reception but nothing works or makes it worse.
At first I thought I'd just deal with it, but then I realized how much radio I actually listen to. So I brought it to the local lexus dealer a few weeks ago to see if they could fix it. They replaced the head unit once with no success, so they ordered another one and replaced the original with it. They had the car for two weeks and when I picked the car up they said that all the stations come in except a couple.. Turns out it seems to be exactly the same as it was before, maybe slightly better. I want this fixed completely with no static at all especially since the car is certified and most things are covered.
I think it could only be one of three things the head unit, the rear windshield (where the fm antenna is located) or the wiring in between the two. Since they already replaced the head unit twice I think its safe to say its not the head unit even though they said they tested it somehow and that's what the problem was......
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I have 61,800 practically trouble free miles on my 06 V8. Pleasure to drive every time I get in. About a week ago I started getting thick, static on all of the AM radio stations. Looked on the roof to make sure the antenna was there and it was. The next day I noticed that the static disappears entirely when I hit the breaks and then returns when I let up off of the breaks. 100% reproducible.
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