I just picked up a 67 delco radio for my 67 elke. It has 3 spade connectors marked gnd-12volt-and antenna. The antenna connector has me puzzled. The original speaker wire had the end clipped off and has a green wire and a black with green stripe wire. The radio will only accept one lead as I see it. Should I ground the green wire to the radio chassis and wire the other lead to the antenna terminal or am I missing something? The odds are pretty good the radio won't work anyway but it would be fun to find out. thanks for any help. dan w