[s-cars] Concert Head Unit install

[Andrew Beckert]

Sounds like the amp trigger isn't turning the amps off/on.  It's one
of the pins in the 20-pin harness with the line outs to the bose-amps.

On Fri, Aug 22, 2008 at 12:55 PM,  <j.n.tilden at comcast.net> wrote:
> I finally installed the new Concert head unit in my 1995.5 S6 with a new harness to allow hooking up Ipod inputs. I have removed the CD Changer and the Cell Phone completely.
>
> All went well and it turned on and worked just great for about a week.
> Now, I get loud popping on ignition turn on and off.
> Popping does not occur when turning on or off the Concert head unit.
> Popping does occur when turning on or off the ignition switch, whether the head unit is ON or OFF!
>
> Is this the symptoms of the dreaded Bose capacitor failure?
> I seem to recall, but can't find, the article that describes the rework for the Bose amplifiers, I am competent with soldering.
>
> Or is this a function of the Concert radio being different from the Delta?
>
> Thanks,
> John
> 1995.5 S6 Avant
> Seattle WA
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