^^It's in the manual which is just for gti/gtd and i'm positive it used be in the pricelist, however i've just checked the new one online and it says GT only, so it looks like it's been changed. Oh well not to worry, at least i know now.
the wiper is a pain though, had auto wipers on the mk5 and never had a problem, just turned the wipers off before i put it in reverse and it didn't wipe. I think the rear wiper on the mk6 is connected to the rain sensor.