ilovefuzz.com

I bought a Duo Sonic today, and the three way switch was shorting out and then just fell apart. the one that was in there is the one in the first picture. I bought a three way switch at a shop for a dollar, and its closed and has three lugs on the one side, and one on the other side. like the second picture.

http://support.fender.com/service_diagrams/squier/Squier_ClassicVibe_DuoSonic_SISD.pdf

If you use this diagram and wire the grounds to the single tab, the volume pot to the center of the three tabs
and the hot wire of each pickup on either side of that depending on switch orientation it SHOULD work.

You can always wire it up with alligator clips first and check it by tapping on the pickups with something metal.

figured it out. I think some idiot at guitar center tried to wire it. was a different switch and was held together with electrical tape...