What an amazing guide, thank you! When I was searching for a wireless charging solution, I found this tray for $130 at Aliexpress:
https://www.aliexpress.com/item/XTOO...12157d6cad6859 Looks very similar to yours which is $188.
Btw I ended up ordering this plug&play alternative
http://g30.bimmerpost.com/forums/sho...9&postcount=13 for $90.