Can't find an answer out there anywhere, so I assume it can't be done, but does anybody know if it is possible to add intelligent cruise, as they have on the QX56 to an 09 Armada LE?

Yes it is possible, but it would probably be cheaper to get an Infinity with ICC and transfer all of your Armada stuff over to it. I have added ICC to a couple of Infinity's that was supposed to get it in the first place and only parts of it was missing and it was still a bad job. It took a couple of days.For one thing, most of the harnesses would have to be changed, new control units like ECM, ICC control unit added, Laser added, I think the transmision has a different program. Dash harness is different, steering wheel is different, guage cluster too. Too bad they don't make all of this stuff just plug and play.

Welcome to CA mysticspirit25!

Depending on how much you are willing to spend and is it really worth it to you.

Well, I already purchased the '09 LE for a little over 40k fully loaded, b/c I was friends with the owner of the dealership, it had all options that were available for that vehicle. So I guess I would be willing to put in about 4-5k, considering the QX56, the lowest price I could find was 55k.

I even had the 3m film for free and free oil changes for life, so I got a steal on the LE, (at least I think so).

So, I am willing to put about 4-5k into it and it is worth it to me.

That is not a bad price considering some of us have added anywhere from $3-5K in additional aftermarket options as well.