AC Delco head unit

Printed From: the12volt.com
Forum Name: Car Audio
Forum Discription: Car Stereos, Amplifiers, Crossovers, Processors, Speakers, Subwoofers, etc.
URL: https://www.the12volt.com/installbay/forum_posts.asp?tid=9009
Printed Date: August 05, 2025 at 2:32 PM

Topic: AC Delco head unit

Posted By: Ronald Mark
Subject: AC Delco head unit
Date Posted: February 03, 2003 at 2:43 PM

I have a new AC delco head unit with no plug. It is standard size with a weather band. It has wires running out, but I cannot seem to figure where they go. Red - power, Black - ground, and the unit works, but what about speakers? I have 11 additional wires. I know that I have remote, and memory but help me on the wire colors. unit part # 16269279

Replies:

Posted By: ViperATC5
Date Posted: February 04, 2003 at 1:17 PM

what colors do you have?

Posted By: ViperATC5
Date Posted: February 04, 2003 at 1:27 PM

if you have aftermarket colors:

red = switch 12v, yellow = constant 12v, black = ground, blue = remote turn on, blue/white= amp turn on, RF Speaker = gray/ gray&black(-), RF speaker = WHITE/ white&black(-), LR speaker = GREEN/ green&black(-), RR Speaker = violet/ violet&black(-)

if you head unit has OEM colors: (off the top of my head)

orange =12v constant, yellow=12v switch, black=ground, RF Speaker=GREEN/ lt green(-), LF speaker= tan/gray(-), RR speaker = blue/ lt blue (-) LR speaker = yellow/brown(-)

Posted By: Ronald Mark
Date Posted: February 04, 2003 at 2:29 PM

Thanks,

They are wierd, I figured it out today by process of elimination and will post them later.

Now that I have figued out the wires to each speaker (4) how do I tell what is Pos and Neg for each speaker? I even tried hooking up the output to my fluke 123 scope and all I can tell is that it look like a variable AC wave with no apparent polarity. ???