the previous PO welded metal over the radio cutout (why someone would do that escapes me) so i can't put a decent radio in my 53 gmc 1/2 ton. so, i put a new am/fm/cd in the glove box with a 6-12v converter. i did use an original type mast antenna though. one of them spring loaded type antennas that were popular decades ago. anyway, the AM band works fine, lot of stations, but only static on FM. tried raising it and lowering it, but not even a hint of sound. could it be an antenna that isn't the right wavelength for FM. long shot, but just wondering if anyone had any ideas before I chuck this on and get another.
tony

Overland Blue, 1953 GMC 1/2T, 100-22, 228/1bbl, 4sp/4.10 6v, shortbed/fender side/5-window.