Unlock Audi A3 Radio

I had my battery replaced a few months ago and this reset the code in my radio, I bought the car second hand and the thoughtful previous owner didn't leave the code in the car.
 
I went to the Audi garage but they wanted a ridiculous amount to unlock the radio (I could have bought a new radio and had it fitted at Halfords for less).
 
I was hoping somebody had found somewhere to get the unlock code for cheaper?
 

Hi,
 
You might want to try ebay, I've seen people put adds up for around £15 - which I'm guessing is less that the dealer?
 
Try searching ebay for "Audi Radio Code" or something along those lines.
 
Cheers