Ok,

after digging around I've found that the FCC ID on the Lambo keys matches that for the later generation Audi keys (MYT8Z0837231), and that some of the Audi keys also have a very similar code number (the Lambo one is 400837231A, the Audi is 4D0837231M).

Would any one like to hazard a guess as to compatibility? For the $50 it costs for a blank Audi key on ebay, it's worth a challenge IF I can get hold of the remote programming instructions.

Does anyone have those to hand?

S.