[V8] quiet ride over 80 mph...

Kneale Brownson knotnook at traverse.com
Mon Oct 11 08:53:06 EDT 2004

Wasn't there a feature on some of Audi's fanciest cars where the radio
sound level increased automatically when speeds increased?  Maybe some of
this circuit has become corrupted in the various changes?

At 09:31 PM 10/10/2004 -0700, John Bysinger wrote:
>I have this odd problem... trying to figure it out.
>My 90 v8 has an aftermarket stereo in it (no amp, just deck and 2 non-bose
>speakers so far) and it has an interesting quirk.  When the speedo hits 80
>mph, pretty much on the dot, the stereo shuts off, it doesn't lose power as
>I can still eject the cd etc, but the deck thinks it's time for a nap.  When
>the car comes to a stop, it will turn back on (or occasionally sometimes
>while driving around 20 minutes later.)
>The car did have an aftermarket deck in it when I bought it (a pretty sad
>one at that, but there's telltale signs of an amplifyer being hooked up
>before and the door panels have obvious signs of an el-cheapo stereo install
>shops work (broken panel clips etc.)  So my guess is the previous owner had
>a nicer setup, then put the bose speakers and a cheap deck back in before it
>was repo'd (how I came to own it. :)
>I've done many stereo installs so this isn't all new to me, and I checked
>the ignition wire that the cheap deck was hooked up to to verify it does
>indeed switch with the ignition, but this 80mph shutoff baffles me.  Is
>there some behavior in the electrical system that triggers at 80mph?
>Perhaps a stereo volume adjustment for higher speeds in the stock deck?
>As much as I enjoy the sound of the v8 at 80+ it would be nice to have the
>option of listening to music then as well...  Any help is appreciated!
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