Help with Delco swap.

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=27090
Printed Date: June 02, 2024 at 6:29 AM

Topic: Help with Delco swap.

Posted By: owsley24
Subject: Help with Delco swap.
Date Posted: February 23, 2004 at 10:37 PM

I swapped stereos in my 97 Lumina, with another delco unit. After installing the new unit the speedometer doesn't work. if i plug the old one back in the speedo works fine. Has anyone ever encountered this problem???

Replies:

Posted By: chriswallace187
Date Posted: February 23, 2004 at 11:39 PM

Some GM radios have speed compensated volume control built into the radio.

This is just a guess to your problem, but you may have plugged the connector with the speedometer signal wires into the new radio, and on the new radio those pins might be grounded out or otherwise connected to screw up the speedometer.

The only sections of the harness that need connected for the radio to function are the two 4-pin sections(which contain the speaker wires), and the 6-pin section with orange, yellow, black or BLACK/ white and a couple other wires in it(this is your power and ground).

Try unplugging any other sections of the connector and see what happens. Let me know what you find out.

Posted By: owsley24
Date Posted: February 25, 2004 at 8:10 AM

Thanks,

I cut a couple wires and now everything works great! Thanks for the info.

Posted By: owsley24
Date Posted: February 25, 2004 at 8:11 AM

Thanks, I cut a couple wires and now everything works great. Thanks for the info.