Hey Jim,
Yep, that's the Towbar (made by Best Bars in NZ) that Australian Dealers fit to Australian Tigs (at least that's what I got and have heard of many others - may be the same in NZ too). All the wiring (I believe - anyone else please correct me if I'm wrong?) is installed from the Factory on every Tig, and the relevant electronics are then activated via VAGCOM/VCDS (the program that VW - or anyone who has purchased the cable & software - use to activate/deactivate functions in the electronics) when the Tow Package is installed. The 'CPU' for lack of a better description is then 'notified' when a trailer is attached and adjusts braking etc. to give more stability to the Trailer and the Car. At least I THINK that's the theory behind it!!!
BTW, mightn't hurt to have a good look around under your Tig and familiarise yourself with it. Seems there's a little rust on the Tow Tongue - just have a scout around under the car and make sure there's nothing sinister...call me paranoid! Most of all though, enjoy the Tig and welcome to the Dub Club!
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