I tested my method on a Polo 6N2 GTI. Friend of @mattarosa it still took me about 20-30 mins. No reprogramming of the EEPROM involved, just obtained the SKC and entered through the front door. So even for someone who knows how, it's not like a rapid hot wire job.
Now.... The Audi and Jetta? Different story. For the Audi, I was able to obtain the SKC in a matter of seconds using a £5 'specialist. cable.... Which I found out really quickly is just a bog standard KKL cable they sell on eBay. New key took me no more than 5 mins, sat on the drivers seat. All very comfortable.
The Jetta, I bought myself a key cloning device called Xhorse. A local shop quoted me £80. This device was £100 delivered. There's nothing like DIY plus you get to keep the tool of evil. It took less than 5 mins to clone the key lol.