PIE or PAC 04 Trailblazer

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=39673
Printed Date: July 09, 2025 at 7:44 PM

Topic: PIE or PAC 04 Trailblazer

Posted By: DannyNY
Subject: PIE or PAC 04 Trailblazer
Date Posted: September 24, 2004 at 11:34 AM

Hi all,

I have a 2004 Trailblazer. Installed a PIE GM12-AUX a few months ago to hook up my Roadie. It works great, I get Aux 1 & Aux 2. Yesterday I thought I'd putz around with my OnStar and I got no audio through the speakers. It says "PHONE" on the radio but just a scratching sound, no "OnStar Ready" voice. The Radio is stock and has a "BAND" button, internal 6 CD changer, no Bose. My question is, is this the right adapter I have in? Like I said, it does work but just no OnStar audio. I looked at the PAC AAI-GM24 and says fully compatable with OnStar but also says... will not work in the S10, SSR, TrailBlazer, Envoy or Bravada vehicles. I really don't use the OnStar but I thought it might come in handy someday and want to keep it working. Thanks in advance for any help with this.

Danny

Replies:

Posted By: SoundFX411
Date Posted: September 24, 2004 at 2:36 PM

you can take a look at the METRA GMRC-O1. this might help you

Posted By: kgerry
Date Posted: September 24, 2004 at 3:44 PM

that has nothing to do with the Aux input on these units.... it also doesnt work with OnStar ( you'd need to use the GMOS-01 )

let me play around and see if i can replicate that same situation here

-------------
Kevin Gerry
Certified Electronics Technician
MECP First Class Installer

Owner/Installer
Classic Car Audio
since 1979

Posted By: DannyNY
Date Posted: September 25, 2004 at 7:25 PM

Thanks guys for the replies. I ordered the AAI-GM24. I called PAC and talked to the tech guy, explained everything, and he said this would work with the 2004 Trailblazer. I'll take his word for it posted_image

I'll post my results after I get it and install it.

BTW Anyone need a slightly used GM-12 AUX..... posted_image

Posted By: neener
Date Posted: October 22, 2004 at 2:41 PM

Has anyone been able to get this to work on on a 2002 or 2003 Trailblazer.

I have a response to this in this post:

https://www.the12volt.com/installbay/forum_posts.asp?tid=41014&KW=trailblazer

Any help would be greatly appreciated.