I've a C7 A6 and I'm interested in adding Advanced Key (not just Keyless Go) as you are (were) trying on A8...The sad thing is that the door handle illumination is no longer available.
It was a sweet option. :lol:
So, i ordered just 2 handles and sensors (for the front), and when i started to remove the trim , after getting it done, SURPRISE: my door handles already had the sensor inside, wired and connected.i allready have one sensor ,the two antennas and schematics. i'm going to test it next week.
I'm confident in getting it to work, the hardest part is getting the coding and adaptation worked out since there is nothing known about this in VCDS