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Subject:Re: Wiring in a new Stereo Unit
From:Alan Felder
Date:Sun, 12 Dec 2010 16:34:01 -0600

Yep, now its drawing 10-20 mA.  With the new switch leg, the main power only
is switched, the memory power is constant at 10-20 mA.  The surprising thing
to me is, that even with the unit Off, even with the faceplate removed (no
function whatsoever) that it draws 0.68A.  With nothing going on, you would
think it would not draw anything except the 10-20 mA.  That was my
assumption until I found out otherwise :-)

On Sun, Dec 12, 2010 at 1:59 PM, Mike S <mikes@flatsurface.com> wrote:

> At 10:56 AM 12/12/2010, Alan Felder wrote...
>
>>  found a 0.69A draw...
>>
>>
>> Don't know if all of these new stereo units draw this much power when in
>> the
>> "off" state, but it doesn't seem possible to determine until you have
>> wired
>> it in, none of the manufacturers seem to publish this fact nor the actual
>> draw.
>>
>
> Sounds like you have it wired wrong. No car stereo should draw that much
> with power off. It should have a "Batt" or "+12 V" connection, which goes to
> the always on source. It should also have an "Ignition" lead, which goes to
> a source which is switched (usually the key, but maybe a separate switch).
> As long as the  "Ignition" connection is off, it should draw no more than
> about 10-20 mA.
>

--
Alan Felder
Austin TX
82 Diesel Westy