I'm in need of some help with wiring

[horrorshow]

I'm trying to install an optical theremin in a Les Paul copy.  This started off as a simple experiment and I thought I could wire it up with no problems.  This is what I have going on.
I have the pickups and the theremin wired to an SPDT toggle switch.  I obviously did a poor job of wiring it because not only is there some VERY bad humming, but I can only get the neck pickup to work.  So, basically, I need help figuring out how to get both pickups and the theremin wired to the SPDT toggle correctly so that they both work.  I also need some advice on things I can do to reduce the hum.  

Thanks ahead of time for any help.  

[newey]

horrorshow-

Hello and Welcome to G-Nutz2!

We'll need you to post a diagram of how you have this wired, or perhaps some well-focused pictures to show the wiring.

The theremin may well be inducing hum itself, and the toggle may be a separate problem. But there's no way to tell much about it without knowing how you have this wired, as well as the type of theremin and its associated circuitry.