Darn Picture limits...
...in any case, if you look at this picture of the back of the unit, it shows the same layout as the Indianapolis Pro. The Traffic Pro looks much different as it has a fan instead of a heat sink.
Compare with the
Operation and Installation Guide drawing of the Indianapolis Pro...
The down side to all of this (maybe an up side) is that the only one that Becker North America had on hand was a reconditioned unit from a Porsche. It will be cheaper and have a factory warranty, but will not be new. (I can live with that!)
Here's part of the sticker on the right side of the OEM receiver+NAV unit...
The cable will also be a Porsche OEM part I believe.
Hope that helps everyone... I'll be back with an installation step-by-step when I get the changer and the cable.