Stereo wiring diagram needed?

Tiny
RONGURGEL
  • MEMBER
  • 1980 PONTIAC GRAND PRIX
What's the hot on factory plug? Clock wire? The vehicle listed above is a GP model.
Wednesday, January 15th, 2025 AT 11:13 AM

1 Reply

Tiny
STEVE W.
  • MECHANIC
  • 13,996 POSTS
1980, that was when GM still had the 3-plug system and the extra connection on the back if the info I have is correct. The 12-volt switch is yellow, the full time hot is orange. The images should give you the rest.
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Wednesday, January 15th, 2025 AT 11:40 AM

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