Radio Connection wire identification

[Gerald C.]

I purchased a radio connector for bench testing my midyear radio. It has three wires besides the gound. Black, gray and yellow. Can anyone identify what these colored wires represent?

Thanks

Jerry

[Mike E.]

Re: Radio Connestion wire identification

Knowing the year would be helpful, but generally black would be ground, gray would be power for the light, and yellow power for the radio itself.

[Edward J.]

Re: Radio Connestion wire identification

Jerry black is ground, gray is dash lights and Yellow is ignition.

[Gerald C.]

Re: Radio Connestion wire identification

Thanks for the feedback. I have attached a picture of my connection. It has two black wires, a gray and a yellow. I get what the gray and yellow represent, but one of the black wires appears to be set up for the ground, can anyone comment on the second black wire? I believe this is a 1967 radio.

Thanks

[Leif A.]

Re: Radio Connestion wire identification

Gerald,
If you're asking about the one with the loop connector, that goes to the "Z" bar and is attached with a self tapping screw.

[Gerald C.]

Re: Radio Connestion wire identification

Leif,

Thanks for the feedback. Is the other black also a ground so that I can attach the two blacks to a grounding source for bench testing a radio?

Jerry