N.O.S. bottle opener instructions?

[OldSchoolSwap]

I have the opener but lost the instructions on the wiring. Does anyone have the install instructions?
I've tried searching all over the net, but no luck.

Thanks in advance.

 

[cycloneb18c3]

isnt there only 2 wires?
heres the link for ZEX's install, should be about the same:
ZEX Page