whine in the AM
#1
08-25-2009, 04:20 PM
Join Date: May 2009
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#2
08-25-2009, 05:19 PM
Is this a factory radio? Does it have a cassette or CD player? If it has a player, play a cd or cassette and see if the noise is still there. If it is, then that means the noise is coming from 12v power line, and you can get a noise filter to install to the 12v supply to the radio to get rid of it.
If the noise is only on the AM radio, than that means the fans are generating the noise through the air. One thing you can try in this case is to go to the junkyard and find these little metal cans that are mounted near the regulator and sometimes the ignition coil. They look like the old condensors that used to be inside a points distributor, and that's what they are, but they are made to suppress noise. Strip the hot wire as close as you dare to where it goes into the fan motor, and wire these noise suppressors in, and then mount them to a good ground. That's about all you can do.
If the noise is only on the AM radio, than that means the fans are generating the noise through the air. One thing you can try in this case is to go to the junkyard and find these little metal cans that are mounted near the regulator and sometimes the ignition coil. They look like the old condensors that used to be inside a points distributor, and that's what they are, but they are made to suppress noise. Strip the hot wire as close as you dare to where it goes into the fan motor, and wire these noise suppressors in, and then mount them to a good ground. That's about all you can do.
