Just a quick remix to add a power switch to the Prusa MMU. MMU2S
On the MMU you need to be able to switch off both the red and black wires. This switch allows both to be switched. To wire, cut the power wires between the MMU and the printer. Make sure you cut at a position that is close to where the switch will mount.
Tie together both reds and connect a terminal. Tie together both blacks and connect terminals. When you connect to the switch make sure to keep the blacks on one side and the reds on the other. See picture.
Switches from Amazon.
https://smile.amazon.com/dp/B07MV5CD8Z?ref=ppx_yo2ov_dt_b_product_details&th=1
The author remixed this model.