[A4] Obtaining immobilzer SKC

[Richard van der Hoff]

Has anybody ever had any success in obtaining a secret key code for 
reprogramming Audi immobilizers?

I've recently bought a '99 S4, which only came with one key; I got a 
spare cut at the dealer, in the hope of programming the immobilizer as 
per http://www.ross-tech.com/vag-com/cars/key-matching.html - but the 
dealer says there is no way they can get me an SKC, and that they now 
use a system which dials up Audi HQ while the car is connected.

So just wondering if anybody knows of any way to get an SKC, or whether 
I'm really going to have to pay the dealer the £70 they want to do the 
recoding.

Thanks,

Richard