Just fitted cruise to my petrol car - took a few hours but well worth it. I just followed all the advice on
www.golfmk4.co.uk including the link to buy the parts and all is fine. Either stalk will do - I went for the one with the + - controls - seemed to be the preferred option. I got the extra wiring loom from Chris at golfmk4.co.uk (he's very helpful) and followed the wiring diagram for the Golf even though the wiring seems different, I took a chance on the diagram he offers & it worked.
Got a local VAG COM owner (many thanks to him) to enable the cruise before I installed it - now I need him back to reset the air bag light - lol.
Hey presto - DIY cruise control and I saved £100+ beer money