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Auto LED Retrofits causing interference on the car's radio.
#1

Hi Pholks, 

Hopefully I put this thread in the correct category or hopefully the Phorum is the correct Phorum for this topic  Moderators, please correct if I put this in the wrong spot.

Several members and I chatted a while back lamenting how new cars, especially EVs will not have AM Radio.  We did a lot of theorizing about why.  The theory of a noisy EV electric system along with all the other EMI pollution from cell phones, power meters remotely read via carrier current, etc. drew the most agreement.  

Last year, I installed a set of LED Headlight bulbs in my 2003 Taurus.  Some time after that, I noticed a degradation of AM performance and a noisy antenna (static as I went over bumps, attributable to flexing the antenna cable).  When it got to be too much to bear, I installed an automatic power antenna.  I thought it worked great till I actually started the car and the horrible performance returned.  (Long ago, I wired the car for the headlights and taillights to go on when the ignition switch is in run, due to none of my cars having daytime running lights, NY law that lights must be on when windshield wipers are being used, and my propensity to leave the lights on when I leave the car.)

After some troubleshooting, I determined that one of the LED headlights is generating the noise.  The other one does not. 

I will try to put a ferrite bead on the leads to the offending lamp and to the radio to see if that helps.

"Do Justly, love Mercy and walk humbly with your God"- Micah 6:8
"Let us begin to do good"- St. Francis

Best Regards, 

MrFixr55


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