I'm going to be doing this with no solder at all.

How?

Well I know a little trick with conductive ink and superglue. Simply put you mix up a solution of conductive ink and superglue (gel type works best). Preattach your VR to the card with some double sided tape so it doesn't move around and make sure you prebend one leg of your VR so it makes conact with your solder point when you attach it with the double sided tape.

Once you have the VR in place simply apply the glue solution with a safety pin or any other small tip you happen to have handy and waite for it to dry.

You should also preattach the ground wire to your VR before you place it on the board and follow the same steps above to attach the other end to ground.