Nevermind folks! I came up with something based on ideas I found on the net.
I don't really know what you call the connector I used, but it's an old thing I had lying around the house. It converted two mono mini-jacks to a single stereo jack. I have other lying around too, but they are 1/4 inch and will never fit under the string. The mini jack one is very tiny. All you have to do to add some stability would be to use something like blu-tack (called "presstick" around my part of the world) under the big black part of the connector. So far it works like a charm! The other con is that you might en up being a lil bit flat since it is slightly behind the fret, so you'll need to tune up by a couple of cents when using it and tune back down when you're not.
ps. I also cut the tip off to ensure that it doesn't get close to the D string that might make it buzz when you put some power behind your thumb