btw, y'all should see the special tool kit (~$800) to install the Homelink module in our cars (& A3) - the kit is REAL GERMAN over-engineered stuff :nerd: - all looking very handcrafted. First a special plastic bracket to "replace" the overhead console, consisting of a curved plate with brackets and braces and about a hundred screws bolting the whole shebang together. It has a part that hangs off the side like a pontoon on a Polynesian canoe, that has three holes placed in parallel to the plate/console.
Once the bracket is in place, you use a small hand tool punch (with serrated teeth) to drill/punch 3 holes guided by the pontoon template. Once the 3 holes are punched through the headliner, you then take a special cutting block that has a rectangular punch blade (with teeth too) that has 3 sleeves (one with a bolt thru it) that is guided thru the 3 punched holes with a chunk of nylon on the back side - all bolted thru.
You screw down on the bearing bolt and the punch blade cuts thru the headliner into the block behind it - making a perfect rectangle for the Homelink kit to snap thru and into a exact right place relative to the bracket/console every time. It IS elaborate overkill, but very German, very precise, very perfect and much appreciated - and almost no one could screw it up. 0
The kit is then wired with an intra-connect harness with a power takeoff from the overhead console wiring and presto - that's done. Very nice, works well

- just $300 for what could otherwise be found for about $50 or less - I must say though that even Mito gets about the same (maybe $200) for their new kits, And the Audi one is nicely illuminated has matching (to other Audi stuff) buttons too.
I bet there are but 50 or less of those installation kits around the whole world though ...