I'm wiring in a new aftermarket radio, and I need a color-coded factory wiring diagram. can someone help please?
Oct 5, 2021 at 9:58 AM
Radio wiring diagram needed
1976 CHEVROLET 2500
MAVRECKESKO
- MEMBER
- 5 POSTS
- FOLLOW
Repair Safety Notice:
This information is for general instructional purposes only. Vehicle repair can be dangerous.
Verify all information, follow manufacturer service procedures, use proper tools and safety equipment,
and consult a qualified repair shop when needed.
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You should have three 4-pin plugs as shown here. The fourth 2-pin plug wasn't used until the mid '80s on radios with a digital display. You won't have that plug, but you will need the constant 12-volt feed to maintain the clock and station presets on your new radio. You'll need to run that wire from the fuse box. Most GM fuse boxes had accessory terminals marked in them. Look for one that says "12V". Another one will be listed as "12V Ign", or just "Ign". You don't want that one. You already have that switched 12 volt wire in the connector.
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Oct 6, 2021 at 4:32 PM
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