[monk]

OK, I have found the appropriate screw length and thread pitch for attaching the radio to the shelf.  While the antenna wires have lost their color, it looks like there is a common wire that was white at one time and this will go to screw #3.  The other two will go to #2 and #4 and I don't think this makes a difference.  I'll let you know what happens.  Thanks for the help and the maintenance diagrams.