Does anyone know where I can find some good wiring diagrams that incorporates a blender on a 3 single coil style guitar? I'd like to be able to blend the neck pickup with the bridge pickup.

Welcome Tom,
Try this link below from another website I peruse often or try the search function on the forums home page. I'm sure Martian has posted several times on this subject.
http://www.thegearpage.net/board/showthread.php?t=148831&page=2

You will find several wiring diagrams in there at least one using your existing tone pot for the blender and the other as a master tone for all 3 pups.

I just installed a toggle switch. Yes I know its not exactly the same as the blender pot mod but it was very quick, painless, and I am really pleased with the results. Now i can add the neck pup with the bridge pup with the flick of a switch.

A Fender Blender.

I like it.

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