For thr record
This eject box does not have a pairing button as its for a mulf car
But grounding the cradle on wire, white, causes it to charge
So that is how i have installed it with green wire unconnected
Now to wire in my ulf with remote pair switch

Cheers

Chris

Pin 32 on the ULF is the pair button, just use a normal switch (Monterey) to ground it.