It has been 10 years since I have owned a S4. Now that it has come time to find the best deal I have a couple questions about the obscure charges from the Audi dealers. a couple dealers I have talked to won't guarantee a price on the 2012 S4 that I order from the factory since "prices are subject to change" between now and when I take delivery. I understand if Audi USA makes some minor changes in the charges for the car or options but its the unknown charges that can be tacked onto the invoice that gives me pause.
I have been told by one dealer that I can get the vehicle for $1000 over invoice (but no invoice until the car arrives, so it could be a bit risky with unknown charges). I asked to see an invoice on a 2011 S4 in stock to get an idea of "other charges".

On an official looking Audi (Volkswagen group of America) invoice for a 2011 S4 Southern California car has these 3 obscure labels and pricing:
SCADA2 #350 $438.04
AoA LA DAA #351 $274.00
Preparation and inspection $195

1-Are the first two charges for advertising?

I was told "Preparation and Inspection" was a charge mandated by Audi that takes place at the port.
In addition I was told That they would waive an additional dealer prep (not listed on the invoice)of $295 that takes place once the car arrives at the dealer. Which is removal of protection film, wash, fluids, suspension adjust etc. etc.

2-I know that the dealer prep fee is BS but what about the one listed on the invoice for the port of call? Is this also another BS charge or is this a real charge from Audi? Should this prep fee also be waived?

3-Has anyone in Souther California been able to get a discount on the high ad fees of over $700?

4-Does "$1000 over invoice" (including these 3 charges of $907, so really totaling $1907 over the car invoice) seem fair on a S4 ordered from the factory?

Some people have mentioned that they were able to get Audicare for free or at a discount but it doesn't seem like any sales reps want to give a deal on this or almost anything else since "the S4 is a very limited and sought after vehicle".

5-How hard is it to get a deal on Audicare?

6-Any other pitfalls I should be aware of?

I know that there have been very few 2012 S4's ordered from the factory so finding out what a good value is may be much tougher than buying a car off the lot...

Thank you for helping me get back into the S4 family...

p.s.Before someone tells me to do a search, please let it be known that I have spent countless hours searching and researching on this site and AW, but since the 2012 orders are so new that it couldn't hurt to start a new thread with some specific questions.