I created this dummy button to insert two switches for my phone charger and my AUX adapter. It fits a 1999 Volvo V40 (2000 model).
I used these switches:
https://www.amazon.de/-/de/gp/product/B07PVZ18ZP/ref=ppx_yo_dt_b_search_asin_title?ie=UTF8&psc=1
Printed in Prusament PETG for better fexibility and hot summer temperatures.
The author hasn't provided the model origin yet.