You only have to pair once - after the EZ-Key is paired to a computer it will auto-connect from then on
We have never found a Mac without BT built in so lucky for you, no extra module is required!
The title of this step is pretty much what you have to do. Remember that you have solder the 0.1" headers to the module or at least solder wires to the Vin and Ground connections. Connect Vin to 3 to 16VDC (5V is ideal) and ground to the ground power wire.
The red LED will now blink at a steady once-a-second.
Select it and click Continue