Thanks for all your responses and comments guys.
Lee:
1. "... I took the little pad out months ago messing with it because water was getting in ...".
How did you do this?
2. "I proved it by taking the fuse out that does the keyless entry system ..."
Which fuse is that? Can't find reference to it anywhere I've looked ...
3. "I use a pico scope for a lot of my work ..."
Could you explain what this does?
4. the Uni_T UT210E device
How do you use that usefully on the A8? Can I check my current draw overnight?
1781C:
"Its costing £174 fitted (includes part and paint)"
Is that including labour as well? And who's doing it for you?
[I was led to believe it was nearer £350 per door in the past, which I why I've left mine].
Julian