stereo wiring guide for 78 caprice
Printed From: the12volt.com
Forum Name: Vehicle Wiring Information & File Requests
Forum Discription: Request Car Alarm, Car Stereo, Cruise Control, Remote Starter, Navigation, Mobile Video, and Other Vehicle Specific Wiring Info, Manuals, Tech Tips
URL: https://www.the12volt.com/installbay/forum_posts.asp?tid=31485
Printed Date: September 08, 2025 at 7:19 AM
Topic: stereo wiring guide for 78 caprice
Posted By: palehorse78
Subject: stereo wiring guide for 78 caprice
Date Posted: May 02, 2004 at 6:25 PM
trying to install a stereo i know i got some pos and negs mixed up
Replies:
Posted By: boomer_106
Date Posted: May 02, 2004 at 9:19 PM
Best option is a wire harness. Other than that your meter will tell ya pos and neg. It may help if you tell what kind of radio your installing. The more details the better. I dont see a wiring guide for that car at this site.
Posted By: chriswallace187
Date Posted: May 03, 2004 at 12:07 AM
As boomer said, a wiring harness would be preferable; the Metra part number is 70-1677-1. That harness will work if your radio has 3 plugs with 4 wires each, and one plug with 2 wires. If your radio has a different setup, or the harness has been cut and you can't reattach it, the wires should be as follows:
12v constant - orange
12v switched - yellow
ground - black
LF speaker positive - brown
LF speaker negative - yellow
RF speaker positive - dark green
RF speaker negative - light green
LR speaker positive - gray
LR speaker negative - tan
RR speaker positive - dark blue
RR speaker negative - light blue
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