I designed this mod to plug into the AMS to power a small LED strip via a buck converter that has 2 USB-A ports. Made to work with this USB buck convertor on Amazon: https://www.amazon.com/gp/product/B07KWRH61D

You will also need either six-pin AMS cable. If you cut in half, you could create two of these. The AMS cable is here: https://us.store.bambulab.com/collections/accessories-for-x1-series/products/bambu-bus-cable-4pin?variant=40475102937224

Use a small zip tie around the end piece to provide some strain relief as show in the picture. The end piece then pushes the board in and should snap in place.

FYI, please read this article on the BL wiki page link as Bambu Lab doesn't recommend pulling power from the AMS.