For my LowRider 3, so not sure if this’ll help, but… to power my SKR 1.2 with one 12V power adaptor, I ended up cutting one of the BTT provided wires in half, and connected with WAGO, video clip… 14:39 Case wiring, routing power
Many ways to skin a cat… For example SupraGuy made small jumper wires, avoiding need for WAGO connector: