Re: IML: Static on AM radio??
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Re: IML: Static on AM radio??



Some of the posts responding to this message are advocating adding all sorts of components to eliminate the noise. The car wasn't equipped with them when new and probably doesn't need them now.

The most common cause of the static Anthony described comes from a poorly grounded antenna. The antenna's cable is coaxial and needs a good ground on the shield at both ends to keep engine and electrical noise out of the AM section of the radio (FM is simply not affected). One end of the cable is grounded at the radio, the other by mechanical contact with the car body. If the antenna shell where the cable connects isn't mechanically (and thence electrically) connected to the body, you will have noise.

The fix is to remove the antenna (I have no idea how on a '93) and ensure that the metal around the antenna is rust free and that the attaching bolts provide good metal-to-metal contact and are tight. While you're there make sure the cable connection to the antenna is secure as well.

Ken Miller
1961 and 1967 Converts
Portland, Oregon

anthony romano wrote:

Thank you Tom, I own the car for 2 yrs now and it has been there since I own the vehicle. Thank again I'll try your suggestions-Anthony

    ----- Original Message -----
    From: tom higgins <mailto:thomash85715@xxxxxxxxx>
    To: mailing-list@xxxxxxxxxxxxxxxx
    <mailto:mailing-list@xxxxxxxxxxxxxxxx>
    Sent: Friday, October 20, 2006 4:43 PM
    Subject: Re: IML: Static on AM radio??

    Radio Shack used to sell a kit of capacitors and inductors to
    splice into the power supply wire behind the dashboard.  It worked
    pretty well.  If they stopped carrying it, try a auto sound
    specialty joint that does its own installs.  They are bound to
    offer something similar.  Whatever you buy, put it as close to the
    radio as possible.  You may end up dismantling the dashboard.  A
    suppression capacitor on the alternator might have come loose or
    deteriorated as well.  The fact  you hear noise from other sources
    besides ignition itself would tend to eliminate need to change
    spark plug wires.  Did this just start or has it always been
    there?  --TH

    anthony romano <mamrom@xxxxxxx> wrote:

        Does anyone know how to fix the static on the AM stations.
        When the engines is off there is no static on the radio. I
        also here the wipe blades and the turning signal through the
        radio? -Thanks
(93 Imperial Stock radio)


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