Depends on the year. As mine is a 2005 with the aerial in the rear glass, I got a mk6 setup for that which was a bit fiddly as (being a cheapskate) I got the bits together myself from Ebay. Kufatec do the complete kit which would take the hassle out of it. Works great, looks factory.
I had bought one of those ones that go in the side of the windscreen which I never used which I'll put up in the for sale section soon.