Hi guys
Apologies for delay, just got around to it today! So I took photos, but also as we said earlier, my Dad and I were curious to see if we could somehow splice the connection. We ended up managing to remove the pins from the A6 steering wheel, and managed to re-insert the pins from the A4 wheel into it...fitted the wheel, stood outside the car for turning the ignition, and hey presto!
I was slightly nervous of wiring being incorrect and blowing the bag, or my horn not working, or a fault on the dash, but all was well! So thank you very much all for your input and help, gave me the confidence to go for it. I'll attach the photos so you can see the difference of what I spoke about, plus a photo of the wheel installed