On many late model cars , the lighting circuits are not fused , because they are controlled electronically with over load circuit protection. I would test each fuse in the cabin fuse box to find a suitable permanent or ignition supply circuit. May be more difficult than you think . What did the Audi club say?

Thanks for the advice. Audi club no response as yet. I have the engine start fuse in the cabin fuse box so could check permanent for that. The switched fuse no issue. Maybe a silly question but as soon as the car is unlocked, many switched fuses are activated. How do tell a permanent from a switched at that point?

Different circuits become live at different times . Even when you exit the car and lock it , some circuits stay alive for a short period before shutting down . That’s why I said this may be more difficult than you think .

Thanks again. Lol. Why is nothing ever straight forward these days! Just a quick question. Maybe misplaced logic but I figured that the dashcam must incorporate a switch that moves to permanent live once the engine is switched off. Therefore if I were to connect to say a known 12v switched fuse and a potential permanent live the video feed from the dash camshould remain on after a period of time if the potential permanent live was correct? Does that make sense

Reason I ask is that I don't want to do any damage if I use best guess on likely permanent fuse.

Thanks

Don’t mess with electrics on a modern car . Incorrect installation can cause all sorts of drama.

Very good advice. If you cause any problem or damage you would invalidate the warranty of your expensive new car