Bose System Power Relay Location

[Bernie Benz]

Ingo, I've not been seriously following this thread but while you're in
there and if you haven't already done so, change the power source to the
head unit such that the + is not always on.  Here is my post to this effect
of many years ago.

> 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
 

> From: "Ingo Rautenberg" <IRautenberg at comcast.net>
> 
> Re: Bose System Power Relay LocationThanks, Dave.
> 
> Yep, it would appear that the red with yellow (or orange) stripe wire is the
> positive power wire that supplies all the Bose amps.  Tomorrow I'll be
> snipping away (yeah!) and finally doing the install.
> ----- Original Message -----
> From: Carol, Dave, and Zach Weiss
> To: 'Ingo Rautenberg' ; '200q20V list' ; 'V8 List'
> Sent: Sunday, December 14, 2003 12:11 AM
> Subject: RE: Bose System Power Relay Location
> 
> 
> Ingo,
> 
> 
> 
> Good detective work.  I don't see anything like that in the diagram.  You've
> got the right idea-when it comes to wiring, the diagram is a good place to
> start.
> 
> 
> 
> Dave
> 
> 
> 
> -----Original Message-----
> From: Ingo Rautenberg [mailto:IRautenberg at comcast.net]
> Sent: Saturday, December 13, 2003 9:50 PM
> To: 200q20V list; V8 List; Carol, Dave, and Zach Weiss
> Subject: Re: Bose System Power Relay Location
> 
> 
> 
> Dave,
> 
> 
> 
> No need.  Yes, I'd found it in the meantime and found something else that is
> interesting (thanks for pointing out where it is in the manual, Dave).  After
> removing the relay and hooking up the voltmeter, it would still show 11.5+
> volts (even with battery disconnected).  So I knew there had to be a capacitor
> somewhere -- and there is (was):  The free area of the Distribution adaptors
> at the bottom of the footwell auxiliary relay housing.  No mention in ETKA of
> the part number (not known), but it's a choke (PN# 443 903 547 A) with
> attached capacitor that is attached to a red three-prong plug and has three
> wires going to it:  Red w/orange stripe, red w/ black stripe and brown.  If I
> plugged in a Bose speaker amp, it would drain the capacitor.  If not, the
> capacitor would hold it's charge.  As to whether the capacitor is used for
> anything else, I don't know.  If I'm reading the unit correctly, it's rated at
> 12 A (max 20 A / 2min).  Wonder if it's also use din the 200...
> 
> 
> 
> Ingo
> 
> ----- Original Message -----
> 
> From: Carol, Dave, and Zach Weiss
> 
> To: 'Ingo Rautenberg' ; V8 List
> 
> Sent: Saturday, December 13, 2003 10:01 PM
> 
> Subject: Re: Bose System Power Relay Location
> 
> 
> 
> Ingo wrote:
> 
>>> 
> 
> See Bentley for the 200 on page 91.23  It talks about Speaker Relay, J225
> 
> with a drawing that shows (apparently) the general area this Relay should be
> 
> (at least for the 200).  Besides the thorough wire wrapping job, everything
> 
> is tucked in soo close  I feel I really have to tear apart much of the sound
> 
> deadening material, unscrew numerous brackets, etc.
> 
> This appears to be entirely skipped in the V8 Audi shop manual (at least the
> 
> 1990 version).
> 
> <<
> 
> Speaker Relay J225 is 19 on Auxiliary Relay Box II, red relay socket.  See
> manual page 97-60-2.  Aux relays (right footwell) are shown on page 97-40-1.
> This relay is also listed on Service Pub. 89-1 V-8 Main Wiring Diagram, page 2
> of 82 (was in my bound manual).  The relay is on current tracks 753 and 754.
> I haven't gone down to the garage to verify the manual, though.
> 
> Dave Weiss
> 
> V8 5-speed
> 
> 
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