I did the same thing, wired my garage opener to three switches. Also before that I had a blank switch with the VW logo on it, looked very good. I had to buy a different ashtray to get five slots so I could have ESP, SET and the three buttons for the gates etc.
Looks great, really OEM. They can also make them bespoke if you aren't going too complicated.
The other option maybe is the USB aux button from a SKODA. I was tempted to try this but no room so didn't investigate much. It looked doable though.