Can't see why not, but given the cost of replacement windscreen (first one I needed on my mk7 estate was 1200£ from Autoglass! - not sure how much it cost the second time round about 6 months later) it would be cost prohibitive to start with.
Probably needs high BCM, bit of wiring, relay and an awful lot of coding. Possibly activation with a code by VW, though not sure if this is something that exists.