This is the clock I installed from a 80'S model Chevy truck. It only has a hot and ground wire. You have to cut out the back for the hook ups. It iis very simple to do. Just about any truck of the 80 should have these and all I did was install it. It was taken straight out of the junk yard and installed.
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Andy
71's Are for ever!!! or 67,68,69,70,72
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