Car-kit Interface Harness????

Hey guys, new here. Just bought my very first VW (06 2.0T Jetta), and i'm LOVIN IT!!!!!!

I have the factory installed, hands free phone system in the car allready and am wondering about the harness you can buy in the new Driver Gear catalog on page 19. It says you can take advantage of the system in the car, so I ordered the harness from the dealer, and just the harness came in, not what's shown (Item B). I am guessing I need to order the Motorola hands free kit shown on page 19 as well??? The parts department seems to be lost and not sure what I need, the catalog is very vague and when I tried to call the 800 number, was told that a salesman had to contact them. Seems kind of stupid that you can't get any answers on a product you want to buy. But still, VW is a great company, get treated well when I take it in for service. Thank's for your time and suggestions.