Anyone know if this is as simple as just taking a cluster out of a scrap A3 and fitting it? I have climate control so don't think I'd need some of the sensors, for outside temp etc. Is the wiring already there for it? the ECU's don't change, which I guess is where the display gets it's info from. Any ideas, just a general question.....I'm a freak for gadgets! any comments wellcome...i.e. it's a waist of time, save your money you dumbass fool etc. etc.