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LED Headlights Killing Radio Reception?

IslandRoadster

Former Owner of #609
Nov 24, 2018
322
219
Bainbridge Island, WA
Hey everybody! Took #609 to Carl's. Been having this terrible radio reception problem (effectively no reception). I was convinced it was a short in the antenna, but Randy, Carl's son who is doing the work, is convinced my LED headlights are killing radio reception. I'm not convinced.

Anyone heard of this? Solutions?

Here are the lights I bought: 005 Super Bright Headlights 9005 35 watt - $219.00
SKU: LLL9005-3200 from Lifetime Led Lights.

Have not seen any information saying they cause said interference, but figured that the braintrust here on TMC would know far more than I do.
 

hanknum

Member
Dec 7, 2018
218
94
Santa Barbara
Yep... I can confirm.

There's another thread here about converting to LEDs and someone had mentioned that it interferes with the reception. I kind of doubted it, until I installed my LEDs. I still get strong local stations, but the out of town ones are toast. I don't think it is the LED itself, but rather the cooling fan on them. I don't know of any fix... just live with it. I don't drive the Roadster much at night, so not that big of a deal for me. If you do find a fix, please post here.
 
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IslandRoadster

Former Owner of #609
Nov 24, 2018
322
219
Bainbridge Island, WA
Yep... I can confirm.

There's another thread here about converting to LEDs and someone had mentioned that it interferes with the reception. I kind of doubted it, until I installed my LEDs. I still get strong local stations, but the out of town ones are toast. I don't think it is the LED itself, but rather the cooling fan on them. I don't know of any fix... just live with it. I don't drive the Roadster much at night, so not that big of a deal for me. If you do find a fix, please post here.

Thanks. I’ll keep the group posted.
 

bolosky

Member
May 5, 2009
707
595
I have a custom set of super bright LEDs that Carl put together. I haven't noticed any difference in radio reception, which is to say FM is OK and AM is pretty much useless.
 
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CM_007

Carl Medlock
Jul 9, 2014
98
147
WA
I have a custom set of super bright LEDs that Carl put together. I haven't noticed any difference in radio reception, which is to say FM is OK and AM is pretty much useless.

Hi Bill, we used very high-quality LED parts from the best supplier in the world.

The headlight parts in 609 were customer-supplied. They are of good quality but they don't have the filters and resistors needed to stop the hissing in the speakers.

Complaint: The customer complaint was limited to no AM radio reception and to make this worse the station is of the smaller variety and broadcasts with low power. AM radio reception is something I have had to deal with for decades, and back before all the high tech.

Cause: Roadsters have zero antennas and use a coax cable to collect the signal.

Correction: We resolved the complaint with a powered antenna. The reception is very good now. Adding a powered antenna fixed the reception. Bulbs are still a problem but no longer ruining his AM radio time
 

Jeffgtx

Member
May 20, 2014
318
95
West coast
This is not a roadster or headlight specific issue. The electronic components that drive LEDs can cause interference. My first experience was when i put led bulbs in my garage door opener and it stopped responding unless i was right underneath it. So extremely plausible the lights are interfering with the radio.


From chamberlain:
  • LED light bulbs*
    • *If you are experiencing range issues after installing an LED light bulb, remove the LED bulb and check to see if the range on your handheld remote controls has returned. If this resolves your issue, replace the light bulbs with CFL bulbs, or use a higher-quality LED light bulb.
 

DrComputer

TeslaClubLA President
Jan 29, 2009
1,140
368
Sherman Oaks, CA
Radio? Who uses the radio anymore? :) I don't think I've ever tried the radio in my Roadster. Since I have the stock JVC system is has an internal hard drive and I just loaded it up with a bunch of music so that's what I listen to. The Roadster isn't really a conducive environment for audio listening anyway.
 

jason.tv

Member
Feb 13, 2020
410
379
Florida
Radio? Who uses the radio anymore? :) I don't think I've ever tried the radio in my Roadster. Since I have the stock JVC system is has an internal hard drive and I just loaded it up with a bunch of music so that's what I listen to. The Roadster isn't really a conducive environment for audio listening anyway.

When you spend a lot of money and a function does not work anymore you kind of have to wonder if something went wrong; Also it kinda stinks if all the functions do not work on your radio when it should. Especially if it's set to radio when car turns on you can hear the static.

I honestly have no clue; You said they replaced the antenna and power so really have no clue why it's not working. Did they go back into your dash or remove your dash for a second time to replace the antenna?
 
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