Back when I had my factory radio in the car, I noticed that when I plugged in my phone to charge into one of the jacks, it would interfere with the radio. The radio's ability to pick up stations would be compromised. Far away stations I could pick up would suddenly become fuzzy. I've noticed this isn't as bad with my aftermarket.
However, I just bought a pair of LEDs for my fog lights. And I noticed the same thing happen when I turned the fog lights on. Far away radio stations that would come in clear, with the LEDs on, the radio stations would suddenly be fuzzy. Closer radio stations would have a bit of fuzz. So somehow the LEDs were interfering with the radio. Maybe it was the same thing as charging my phone.
I was planning on getting LED headlights, LED fog cubes, and changing my brake lights to LEDs seeing one of them just burned out. But some of these will likely create interference. Is there anything I can do??