Stereo alternator noise

[WyldBil325@xxxxxxx]

HELP!!!!! My 1985 325e has a horrible alternator noise in the stereo. Through
my experimentation, my conclusion is that the noise is picked up somewhere in
the RCA cable between the CD player preamp output, and the amp in the trunk.
The reason I know this, is that when I ran the cable out the driver's window,
down the side of the car and into the trunk, no noise. When I brought the
wiring back inside the car, whine, whine, whine!
I tried running the wire under the carpet over the tranny tunnel, the driver's
side doorsill, then the passenger side doorsill, all to no effect. I am using
the most expensive Monster Cable I could find with the most shielding. OK
fellow Bimmerheads, can one of you shed some light on my plight?

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