Well I Lucked out, I found an antenna for my 42 160 roof mounted radio from a Gentelman who had 2 tucked away in his garage,it cost me $150 thought. The one I got is like brand New all the hardware included. Now is there any special trick to taking the old one off, and replacing the New antenna.The Old one is only missing the mast and "knob" on the inside that you turn it with, the chrome is good, any Idea what to do with the old one when I remove it.