Because, even though I've changed the remote code a couple of times, my
garage door has recently opened "by itself" several times, I bought a
Genie Intellicode replacement remote opener. I'm supposed to deactivate
the current radio. My current apparatus is combined Sears unit with a
button to open the door directly and a radio to respond to the remote. A
photo is at http://www.gavelcade.com/opener.jpg.

I'm supposing that the upper part, the part that's opened out in the
photo, is the radio. The pushbutton is underneath it. If I snip the two
red wires, will that deactivate the radio while leaving the pushbutton
operational?

Is there any reason why what I'm trying to do won't work?