Guys, if you get the China version, it comes with the complete harness which is super easy! You can plug it into the footwell lights, no cutting, no searching for cables and what not. This is the link:
https://nl.aliexpress.com/item/32831...archweb201603_
I'm sure you can even use the OEM leds and connect it to this harness if you don't like the colors from the Chinese version.