LED EMI RFI Radio Noise Eliminators
Installing LED bulbs may, in some cases, interfere with a vehicle's electrical system causing stereos and radios to hum. To resolve this issue, install a single radio noise canceller between the OEM plug and the LED driver to eliminate the noise. Below are the available noise cancellers for 9005, 9006, 9012, H10, H11, H7, H1, H3 bulb sockets.