[snapdragon]

https://www.carparts4less.co.uk/cp4l...41471&0&000469
Can get them to £29 with code WINTER12

Also £20/pr here
https://www.ebay.co.uk/itm/2x-For-AU...t/163223187474
Not sure if they fit the A8 it says so.

Do you have a pic of the projector style? Is it these?
https://www.ebay.co.uk/itm/AUDI-A8-2...t/273134431133
If so, it looks like the connector *may* be different as it fits straight onto the H11 bulb base.