It was actually easier than I thought. That's why I was saying whoever you talked to didn't know what they were talking about.
I first installed my H/U and got no sound out of the speakers.
Basically, the problem we have is the 2002 is new, so all the info about them takes some time to get around. I called a "reputable" Car Audio store here, and asked if they knew how to hook it up. The guy asked me "how are you installing it, there is no install kit on the market?". I told him I got my install kit at Best Buy and he told me to "call them, maybe they know". So, that's what I did. I have the steering wheel controls, so I thought with the 3 plugs in the stock unit, maybe there was a different harness for the Bose system. Nope..... same harness used in the 95 and up. He told me just to hook up the H/U remote wire to the Reomte wire on the harness...... and BAM!!! It all works, and you can tell an extreme difference between the stock and the aftermarket.