My wire harness has a connector for the side of the original wonderbar radio. I believe this supplies power to the radio. The wires are color coded yellow and grey. The yellow looks like it goes back to the fuse box and supplies the positive or hot lead to the radio. Can anyone tell me about the grey wire is this a ground or is it for the lighted face plate? All other grey wires seem to be for dash lighting. I am planing to install one of the custom am/fm direct replacement radios and don't want to butcher my new harness!
C1 radio wire connection
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