Re: Damn Whining noise (long) (archive)

I had a similar problem when I had my stereo installed in my '89 325i. I used a high end Eclipse amp, well insolated esoteric RCA cables, and still ended up with a significant amount of "buzz".

It turned out that the RCA cables from the deck to the amp were running near the fuel pump. The interference occured on the passenger side under the rear seat. I moved the RCA cables as far away from the fuel pump as possible resulting in an undetectable amount of "buzz".

Hope this helps!

: Ok guys here's the set up. . .

: In the front I have tweeters and 5.25"
: In the Rear I have 2 12"
: Powered by 1000 watt amp
: Indash CD Player

: Tweeters are Blaupunkt
: 5.25" are Bostwicks
: 12 are MTX 3000
: Amp is BOSS Audio
: CD Player is Pioneer DEH P4000

: After I wired everything in and sure it was grounded properly, I switched it on and it was fine. . .Now if I start my car. . I get this annoying whine from the front speakers. . .and pitch gets higher when I rev it. . .I immediately checked that it's grounded properly. . .and it was. . .I checked the head unit. . and it's grounded fine also

: I unhooked the speakers from the amp (5.25") and plugged them str8 into the Head Unit. . .no noise. . . . .

: Now I'm thinking that I ran the wire to close to something. . .

: I got it running the down the right side of the car. . .

: I'm thinking it's the battery cable that runs from the enigne to the trunk giving me interference. . . .

: Does anyone agree or disagree. .. .or have suggestions. . . .

: Thanks,

: PJ
: 89 325i
: aka MOUSE

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