I am selling my folding mirrors if interested, as whole units, but they're the dogs nads & the whole setup from audi are about 1k as have the following & 1 feature not on the A3 but from the A6:
S3 Alum Covers
Auto Dimming Glass
Blind side on both glasses not just drivers
4 way electric adjustable
Oem Led's on bottom of the units to wire as you see fit - A6 feature
PM if interested.