With the A8 having a lot more electronics in the roof lining, I thought there would be a nice option in the heads up controls.
And I was right.
There was a unused 4 pin plug. I think this is intended to be used for some camera. Going by the information I found on the net.
It works great. Its ignition feed and generally perfect for this.
Used the proper Audi Plug and cables, then connected them to a random mobile phone charging cable I had which fitted the Camera. Wired it all together.
All in and working.
I forget its there most of the time.
Camera was supplied by the lads at Avanced In-Car