I think (but usually not well) that I know the answer to this question, but ...
The radio kit I received has two female antenna jacks, X and Y in the attached picture. The instructions do not mention two, and I can't find anywhere on the radio board to plug in the jack Y pigtail.
Is jack Y just an appendix? A no longer used organ? Should I just clip the wire so it won't dangle to the wrong place?
'57 GMC 102, Original 347 V8, HydraMatic, 3.08 rear gear, added A/C, disk front brakes, HEI, AFB carb, '98 Honda Black Currant paint. T-boned and totaled 10/12 '52 GMC 152 Stake Bed, Original 228, SM420, added A/C, HEI, disk front brakes, '67 Chev 3.55 rear gear. Gets used as a real truck.