New owner 2009 X5 3.0 Metallic Black

[ezcompany]

Hello everyone, nice to meet you all!
I've been searching for a good and active X5 forum so I hope this is it.
Its been 2 days since I brought home the new car, and this would be my first luxury car ever, so any advice and help is greatly appreciated, as I spent waaayyy more money than I should have! I have been debating over the Q7, ML, and the RR Sport. The RR Sport came verryyy close, but I think in the end I'm glad I went with the BMW, which I hope everyone here will convince me of Details are as follows:

X5 3.0 2009 Metallic Black
Beige interior Nevada Leather
Dark burl trim?
Premium Package
Technology Package
Rear Climate Package
Seat Heaters
Running Boards

I actually didn't want the rear climate but they said there was no choice.
Anyways, I have some immediate questions for you xperts if you don't mind!

1. I have the USB connector. I thought this would integrate my Iphone's Ipod function, but it didn't work. Whats its purpose? The Iphone is currently connected via bluetooth, and I can only listen to Ipod/Pandora music through the aux jack.

2. Whats the main difference between the 08s and the 09s? Since this is 09, have I actually purchased the 2010 model? I know I should've clarified this with the car broker but I was in such a chaotic situation my apologies.

3. Best way to maintain and care for the metallic black? Is there a recommended wax? Do I go to a detailer or is it better to do it myself?

4. Cheaper option to get all weather floor mats other than through dealer ship?


Thank you all and I hope to have a great time on this forum learning!

Jin