Piston Cleaning, Rear Fogs, Telephone Speaker & 1 Correction

[Traurig, Scott R]

On the nav/telephone inputs to the radio: pinouts I've got. Special radio
tools I've got. What the connections do I cannot determine with a volt
meter, as I have no radio or nav source to generate signals to measure. I
suppose I could guess by stimulating the pins with signals to see what
happens, but I would prefer not to experiment this way if at all possible.

The official printed factory wiring manual, which I've got, does not show
the special speaker on any radio configuration for any year 96-00. I hope it
is on the CD as you say. I guess I'll find out when I get it in a week or
so.

Thanks,

st
98.5 A4 1.8TQ


		From:	Ti Kan [SMTP:ti at amb.org]
		Sent:	Saturday, 08 December 2001 14:08
		To:	scott.r.traurig at baesystems.com
		Cc:	quattro at audifans.com; ti at amb.org
		Subject:	Re: Piston Cleaning, Rear Fogs, Telephone
Speaker & 1 Correction

		Traurig, Scott R writes:
		> Ti: thanks a bunch for looking into the nav/telephone
audio thing. I do see
		> the extra speaker in my driver's door, but I'll be damned
if I can find it
		> in my factory electrical manual (my factory service manual
won't be here
		> until next week). All of the schematics show the phone and
nav systems only
		> attached to the radio, and no where that I can find is a
connection to that
		> door speaker, not even on the radio schematic. Is that
speaker wired to the
		> radio as a separate channel, or is it wired to attach to
the telephone unit?
		> Any additional info. you have would be much appreciated.
Also, does anyone
		> know what the signaling standards are for the radio to
telephone/nav
		> interface, i.e. the correct audio voltage levels, and the
mute line levels
		> (bet it's ground to mute or some simple thing)?

		Not sure about the voltage level, but it's should not be
difficult to
		probe the line with a voltmeter.  You need four special
radio puller
		tools to extract the Symphony radio from the center console.

		As to how that little nav/phone speaker on the driver's door
on Bose
		equipped cars, the Bentley CD wiring diagram doesn't show
it.  It shows
		only the non-Bose setup.  However, in the repair manual
section of the
		CD, "Electrical" -> "Telephone, Radio, Navigation", there
are separate
		sections for each of the Delta and Concert/Symphony and
Bose/non-Bose
		configurations.  There are descriptions about what each pin
of the
		radios connectors do.  You'll find the connection to the
nav/phone speaker
		there.  It's two of the pins on one of the 8-pin connectors.