Hey everybody. So i bought my Audi recently and it only came with one key, so i'm trying to figure out how I can get a spare in case something happens to my current one. Or to use the spare one for testing if needed. But i'm also trying to figure out the most economical way to do it as well.

From what i'm understanding, it sounds like the easiest way to do it is to buy a used key off of ebay. I saw that the board in the remote can be reprogrammed by an Audi dealer or other Audi repair shops, so that seems easy.
The only thing that gets me is getting an actual blank key blade itself so it can be cut at an audi shop or dealer. I was able to find these ones, but i'm not sure if these are the exact blade for my models' remote. https://www.amazon.com/Uncut-Blade-Blank-Compatible-Volswagen/dp/B077L3Y7GM https://www.keylessentryremotefob.com/flip-key-replacement-blade-br-2005-2015-audi/

Is this process as a whole correct as far as I'm describing it? I'm not too sure, as i'm only piecing together what i've found on different forums.

Yep you're right, the blade has to be cut and electronics coded. Audi will want £300 at least. An independent company Neill charge around £150. shop around as prices vary 👍