PaulW

Now I know why the cars with the concert radio will say "phone" in the display when doing an aftermarket hands free kit. It's because the DB25 connector in the trunk goes to the radio, then it goes to the B pillar speaker.

On the Delta unit, it goes straight to the B pillar speaker. The Delta unit does not have a 10 pin connector that comes on the Concert and Symphony radios which inputs the phone signal, then it goes out to B pillar speaker.

Anyways, in my infinite wisdom, I thought Tel +/- on the Nav Plus was output, but it's the input from the telephone. So I just put my telephone "goes out to the B pillar speaker" wires into the Tel +/- input. Then I hook the output of 5 and 6 on the Nav Plus unit to the B pillar speaker. How will I do this? Easy....the wires are already right there because I have them hooked to the brain box which lives in my dash right now.

I think the way it works is once your phone is in use, it mutes the radio. Once the radio is muted, it takes the input from the phone and puts it out on pin 5 and 6 on Connector II. Very cool and easy!

I just hope the Nav voice also comes out on these pins....still haven't figured that out yet...but will when I do Airbill's install tomorrow....this drawing is subject to change!

<img src="http://www.audipages.com/upgrades/nav31.JPG">

houseofsound

Good luck!

GDJT Allroad^2

<a href="http://washingtondc.craigslist.org/wan/19994893.html">This ad on Craigslist</a> points to that and so does <a href="http://www.audittcca.com/classifieds/00000310">this posting</a> from the TT CCA site.

When we do the conversions, where can we source NAV-C CDs?