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Am Interference - Speed Related


Nathan

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97 850R wagon, Stock radio and speakers, with the stock antenna in the rear side window. No electrical modifications that I know of.

My AM radio gets some speed related interference. It sounds similar to what you would get from engine alternator interference, but it is absolutely not engine related. The whine increases and decreases with vehicle speed. I can put the car in neutral at freeway speeds, or while stopped and rev the engine and there is no impact on the interference. The frequency and volume of the interference is totally 100% related to the vehicle speed. :angry:

I am stumped. Any suggestions on where to start looking?

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97 850R wagon, Stock radio and speakers, with the stock antenna in the rear side window. No electrical modifications that I know of.

My AM radio gets some speed related interference. It sounds similar to what you would get from engine alternator interference, but it is absolutely not engine related. The whine increases and decreases with vehicle speed. I can put the car in neutral at freeway speeds, or while stopped and rev the engine and there is no impact on the interference. The frequency and volume of the interference is totally 100% related to the vehicle speed.  :angry:

I am stumped. Any suggestions on where to start looking?

People actually listen to am radio?

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I have the same trouble in my 96 855R wagon?  Maybe the antenna's just aren't great for picking up AM reception.

wait.. aren't there 2 antenna's for wagons? I just put my new kenwood deck in, and there were two large black cords that i removed, and only put one back in the Kenwood..

wait a minute... NM.. I remember getting AM reception... so that can't be it..

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