wait, back up a little bit. Are you sure that this is an actual product from your company or is it a disable function that already there inside the car? Audi have tons of these functions already in the car but got disable in US cars. I know the whole windows up and down remotely is already in the car 100% certain. It takes the dealer less than 5 minutes to enable the function for you. Regarding the tailgate, I'm pretty sure that the I heard someone else talked about this as a already available but disable function on the Q7. If what I'm saying is true, anyone can bring their car to the dealer and have it done for much less (sometimes free like what I did with my A6 windows)