1994 GMC Sierra

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=19932
Printed Date: August 23, 2025 at 5:01 AM

Topic: 1994 GMC Sierra

Posted By: markyezy
Subject: 1994 GMC Sierra
Date Posted: October 10, 2003 at 7:53 PM

Hello,

The truck has the two seperate units, It has the big stock radio, and the tape deck, well I replaced all this with one CD Player in the place of the tape player, works good but I want to be able to leave the big radio in place and have it so that the time will still show on the display. I was wondering how I would hook this up to do this?

Thank You,

Mark

Replies:

Posted By: Ketel22
Date Posted: October 10, 2003 at 8:14 PM

connect the aftermarket h/u like you would normall, the stock radio will only need the three power wire. 12+ constant, 12+ switched and a ground

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Quad L Handyman services

Posted By: markyezy
Date Posted: October 11, 2003 at 1:15 AM

Will the radio work as normal like this?

Posted By: markyezy
Date Posted: October 11, 2003 at 1:15 AM

not radio, I meant clock.

Posted By: Ketel22
Date Posted: October 11, 2003 at 3:41 AM

the clock should work like normal, how ever the stock radio will not play.

**beaware of this, the after-market h/u will also display the time as it normally would :( **

the after marker head unit should be unaffected by the presence of the stock hu as long as everything has been transfered rather than spliced into the new headunit.

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Quad L Handyman services

Posted By: markyezy
Date Posted: October 11, 2003 at 6:52 AM

Is there anyway I can setup, or power up the unit outside the truck? Any battery I can use to power it up to see if it still works?

Thank You
Mark

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