I have two Milwaukee Heavy Duty job site radios. One has the antenna broke off, the other is a new radio. I play the radio in my barn, but the reception is interfered with by the shop lights ( I think, since the radio was fine until the shop lights were installed.) I want to extend the antenna to an external outside antenna and purchased a Fanfare FM antenna from C. Crane, along with an extension RG59 coaxial cable. The radio has no inlet in the back to attach the cable. Is there any kind of adaptation I can make to the radio to achieve my goals? I am willing to use the older radio as a trial...