Remote Switch Canon Motor Drive?

I'm trying to figure out which remote switch will work on my Canon AE Motor Drive FN equipped with the Battery Pack FN. It's not the remote switch MD, the plug is wrong, unless there is some sort of adaptor pin. Any of you kids have an idea what, if any switch will work. I've looked over all the old Canon info I can find but no luck. I even have the manual got the drive but it doesn't show or list the switch.

That's the drive attached to the battery pack and that's the plug of the MD switch, obviously a no go.

You need a Remote Switch 60 which is also used in the A-1 Motor Drive MA and the AE-1 Program Power Winder A2.

It uses a standard 2.5mm (1/10”) sub mini plug, so you could even make one yourself quite easily.

The Remote Switch RS-60E3 for newer EOS AF cameras will also work.