Kessy Module Swap?

Turns out my kessy module needs replacement. What are my options other than having the dealer do it ($2300)..? I searched Google and noticed a few have had success swapping with one from the same year car with matching identifiers also seen a post where the individual only swapped the eeprom? I'm ready to buy the necessary software would just like some guidance to ensure I purchase the correct parts and software as well as the proper procedure. I have a background in Desktop Support and my father was a lead mechanic for much of his life so I'm fairly confident in diy. Any help is beyond appreciated, thanks in advance.
​​​​​​​2004 A8l with a regular key fob not push to start. I can provide any other relevant info if needed.

Maybe an autoscan would be useful. See below on how to post one.

iichel said:

Maybe an autoscan would be useful. See below on how to post one.

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Which vcds software do I need? Can I purchase an ebay cable to use with it?

Feel free to chime in

LegacyMusic413 said:

Which vcds software do I need? Can I purchase an ebay cable to use with it?

Click to expand...

Since you're in US,you buy VCDS directly from Rosstech,avoid eBay like the plague

I don't have much confidence that it's possible to replace the Kessy module in that car with VCDS.

-Uwe-

Sadly not with VCDS, but in this model year could be the way to swap the eeprom if you have the same unit...