[morzh]

Kirk

It is simple: you twist the two wires (+ and -) of the two caps together, cut the twist short and solder them together.
Bend it out (so it does not get bent on its own the way it wants when pressed against the base).
Then you bend the other wires (plus and minus) into short loops, bend them in the opposite direction from the twist (to create more space), thread red (plus) and black (or green/blue/whatever it is you like for the minus) wires through the loops and solder them. (Trim if necessary and touch up with some solder so no bare copper is exposed.)

Then you draw the wires through the hole in the base and pull them until the caps are close to to it, like on the photo.
Watch for the wires being apart and apart from the twist.

There will be some space left between the bottom of the caps and the base.
This is where you start hot-gluing, letting the plastic fill the spaces - this will keep it stable and insulated.
Then you fill the whole base with the plastic.

Let it freeze, and this is it.