1973 steering colum switch removal-RESOLVED, Installing a Momo horn button Options

[HalfMoon]

Hi all!
Just one last thing to sort out and I can get my recently purchased darkside teener inspected!
I need to install on the Momo steering wheel the PO supplied Momo horn button and hook up the horns I sourced from a 928 I had laying around.
I think I've found the black/yellow or is it black/orange wire in the front harness, but when I looked for a wire in the steering colum I didn't find one. I removed the steering wheel and figured I'd reverse engineer to try and find the green/white striped wire that needs to be attatched to the horn button.
I removed the 4 retaining screws for the switches but the switches would not come out all the way :-(
Haynes doesn't describe the exact procedure. Does anyone know the trick for removing the steering colum switches from a 1973? Keep in mind 73 had some changes and what may work for a 72 or 74 could very possibly NOT work on my 73.
And, of course if anyone happens to have the install instructions from Momo that would be of great help (although I sent them a email request just today).
Thanks everyone! We've gotten alot done sorting this car for inspection in WV :-)
Pix attatched.