I put the Raspberry Pi 5 active cooler on my AI HAT+ 2 when I upgraded the active cooler on the pi5 itself…
If anyones interested it just took two gpio pins plus a power pin and a ground pin.
The scripts are super simple
The only hard part was clipping off the JST and crimping a dupont connector to those tiny little wires coming from the active cooler and making sure the heat transfer pads were in place… it fit perfectly