[RodB]

You should see on the pushbutton assy one row of switches where the wire that is already connected goes. That connection terminal is connected to the same relative terminal on each switch, so you should see a wire running from one end to the other connecting the terminals.

The other row of switches is set up the same. One of the terminals on each switch will have a wire connecting the same relative terminal on each switch. That's the one you connect to your stray wire from the band switch. Use your ohmmeter to make sure it isn't grounded.