Next on my to do list is to check the radio on my 1967 ss396 to see why it is not working. There is a plug on the right rear of the radio, looking from the back, the wires are black,green,black,from left to right or right to left in this case too. The right wire has also been cut on the car. It has a standard am radio and at one time there was a rear speaker since the wires are in the trunk as well as a cutout. The car also has an aftermaket power antenna in the rt. rear quarter that looks like a good aftermarket from that time. In checking I noted it was not an option in 67 but it has a good wiring harness and the motor is braced to the rear wheel well frame and very solid. I did check the tech section and the radio appears proper for that time. I think the wiring diagram shows a yellow wire for power and there is one in the harness but it looks like it goes somewhere on top of the radio. Any help on checking it out to see if it even works would be appreciated.