1998 BMW 328i HK stereo problem: Location of all components?

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Hi, All,

I own a 1998 BMW 328i with the Harmon Kardon factory stereo upgrade.

This system has a switch on the console that turns on and off some kind
of spatial processing which boosts the bass and alters the "stereo
image" specifically for this model of car.

Recently I have had a problem where just the bass-boost and image
"processing" switches on and off intermittently, as if I was flipping
the switch. The system otherwise works fine, and the processing sounds
normal when it's working, so I know the problem is not a fuse or blown
component. I suspect a loose connector, but I don't know the location
of all of the components of the system.

I know about the in-dash head unit, of course, and the switch, but are
there separate amplifiers? Is there some kind of processing unit
separate from the head unit? Where would the various components be
located?

Thanks for any info or hints!

Ken

[e-nigma]

> wrote in message
ups.com...
> Hi, All,
>
> I own a 1998 BMW 328i with the Harmon Kardon factory stereo upgrade.
>
> This system has a switch on the console that turns on and off some kind
> of spatial processing which boosts the bass and alters the "stereo
> image" specifically for this model of car.
>
> Recently I have had a problem where just the bass-boost and image
> "processing" switches on and off intermittently, as if I was flipping
> the switch. The system otherwise works fine, and the processing sounds
> normal when it's working, so I know the problem is not a fuse or blown
> component. I suspect a loose connector, but I don't know the location
> of all of the components of the system.
>
> I know about the in-dash head unit, of course, and the switch, but are
> there separate amplifiers? Is there some kind of processing unit
> separate from the head unit? Where would the various components be
> located?
>
> Thanks for any info or hints!
>
> Ken
>

Usually if there are amplifiers, it is located in the trunk on the drivers
side behind the molded panel

[FasDeth]

wrote:
> This system has a switch on the console that turns on and off some kind
> of spatial processing which boosts the bass and alters the "stereo
> image" specifically for this model of car.
> Recently I have had a problem where just the bass-boost and image
> "processing" switches on and off intermittently, as if I was flipping
> the switch.

I suspect the switch itself. You said it was on the console, which prob
means its exposed to dust,smoke,ashes and/or the occasional Pepsi
splash. I'd try unplugging the switch to see if it makes a difference..
Or try some contact cleaner. How much is a switch from the dealer?
Let me know what it turns out to be.
-Glen