Disable an Automatic Seatbelt with Kung Fu

Step 3: Pull the Plug

Look carefully at the plastic electrical connector.
The manufacturer's spec says it's "natural nylon color".
There's a little latch button on the side.
Push that and pull the plug out of the socket.
Tuck it out of the way where it won't short on anything.

After I did this the clicking stopped and the motor cooled off.