I should get a Nobel Price for this! So, did you buy interface that converts the gala speed signal to a can bus signal? I am sorry to say that you did spend about 120 Euros that could bee invested in something else. So if you have a A4 or A3 unit and you have gala signal in your car just connect it and code your unit as A6 unit, voila...it works. Please do not forgett to make reset of the unit and then go to Enginer mode and there it is! So i did this on my A4 unit, have not tested it on a A3 unit so it is up to somebody else to prove it works. I will tomorrow go for a ride and see if al works 100% .