Fwd: Switched power to head units

Bernie Benz b.benz at charter.net
Fri Feb 15 13:22:08 PST 2008


Re: switched power, here is an old post of mine, fwded many times.

Begin forwarded message:

> From: Richard Hoffman <hoffmar at cc.wwu.edu>
> Date: March 6, 2000 12:00:10 AM PST
> To: Bernie Benz <b.m.benz at prodigy.net>, Eric Renneisen  
> <renneie at hlthsrc.com>, 20v List <audi-20v at boldfish.com>
> Subject: Re: Switched power to head units
> Thanks for the tip! I went in there this weekend and linked the  
> switched power to
> terminal 85 on the #2 relay in the Aux. relay block and it works  
> great, just like
> my mom's 97 A6 Avant's stereo does, exactly like you said.
> Maybe this would make a good addition to the 20v site???
> Richard Hoffman
> 1990 CQ #2256 168K
> Bernie Benz wrote:
>> There is but one best source for key controled, switched power to  
>> head
>> units!  Audi has finely wised up on their later cars and tapped  
>> the same
>> source.  This source will give power on when the key turns the  
>> Ign. on, and
>> will not turn it off until the key is removed from the Ign. lock  
>> cylinder!
>> Great feature!
>> The source is terminal 86s on the Ign. switch, but this is not the  
>> easiest
>> point to reach it.  This red lead goes to the Seat Belt Warning  
>> Control
>> Unit, term 85 and to the Interior Lite Delay Control Unit, term  
>> 86s.  Both
>> of these relays are located on the aux. relay panel, above the  
>> driver's foot
>> well. Pull one of these relays, Pop the socket out the back of the  
>> panel and
>> it will hang down where you can see to tap the red wire.
>> Bernie
>>> Richard Hoffman wrote:
>>>> Is there a way to hook up a relay or something to the ignition  
>>>> switch so
>>>> I can get switched power to the stereo?  It looks fairly simple  
>>>> but I'm
>>>> not very good at reading wiring diagrams -- anyone BTDT?
>>>> Thanks,
>>>> Richard
>>> --
>>> __________________________________________________________________
>>> John J Cunningham
>>> jcunning at mediaone.net
>>> 20vCQ

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