Sounds like you may have tapped into the voltage stabilizer lead for
some of the gauges. (I know it seems goofy for a "voltage stabilizer"
to make the voltage fluctuate, but it's actually more of a "voltage
limiter".) Try another +12v lead.
Chris K.
> First issue is electrical. I have installed a stereo where my old am radio
> used to be, I used my trusty voltmeter to find a good ground wire and a good
> hot wire (12V). Now that the stereo is installed, it starts up normally, but
> then quickly (3 seconds) So I stick my voltmeter in there with the stereo
> and find out that what is happening and see that the voltage starts out at
> 12V, diminishes to 9 1/2 (at which point the stereo turns off,) after the
> stereo has been off for a second or so, it goes back up to 12V, the stereo
> comes on and the cycle continues... This doesn't seem to be affected by the
> RPM of the engine (or in fact if it is running or not...). I have been
> having this problem for a few days now, but because me alternator light was
> on, I just figured that is what it was, I have now replaced the alternator,
> no more warning light, but still the same behavior with the voltage swing...
> Any suggestions?
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