Factory radio problems - Chevy TrailBlazer, TrailBlazer SS and GMC Envoy Forum



Welcome Enthusiast! If you already own a Chevy TrailBlazer or GMC Envoy or perhaps thinking of purchasing such a vehicle, then you have come to the best TrailBlazer and Envoy site on the net! Rainier, Bravada, Ascender, and 9-7x owners welcome too!

You are currently viewing our site as a guest which gives you limited access to view most discussions and access our other features. By joining our free community you will have access to search and post topics, communicate privately with other members, respond to polls, upload content, and access many other special features. Registration is fast, simple and absolutely free so please, join our community today!

If you have any problems with the registration process or your account login, please contact contact us.
Join Today!
Go Back   Chevy TrailBlazer, TrailBlazer SS and GMC Envoy Forum > General TrailVoy Discussion > Audio and Electronics

Audio and Electronics Discuss car audio, video, navigation, alarms, and other electronics here.

TrailVoy.com is the premier GMC Envoy Forum on the internet. Registered Users do not see the above ads.
Reply
 
Thread Tools
  #1  
Old 02-14-2010, 02:22 PM
JoshH JoshH is offline
Junior Member
 
2006 Chevy TrailBlazer LS
Silver Mist Metallic 4.2L I6 2WD
Join Date: Feb 2010
Location: Texas
Posts: 2
Factory radio problems

Hi folks. I'm trying to find out some information for my sister and brother-in-law. They just got an 06 Trailblazer EXT on Friday, and the front tweeters in the door are the only speakers making any sound. Every blown speakers I've heard before usually make some sort of noise (however distorted it may be), but these aren't doing anything. I'm trying to determine if the problem is with the factory head unit or the speakers. Any help would be greatly appreciated. Thanks.
Reply With Quote Quick reply to this message
Sponsored Links
Advertisement
 
  #2  
Old 02-14-2010, 02:39 PM
the roadie's Avatar
the roadie the roadie is offline
No longer with us
 
2004 GMC Envoy SLT "Roadiemobile"
Extreme Offroad Pewter 4.2L I6 4X4
Join Date: Apr 2005
Posts: 26,181
Somebody needs to pull a door panel and apply a meter to a speaker or two and see if they get a decently low resistance reading with the power off. But typically you need to use something extra to diagnose this sort of problem. Either a meter to see if the speaker's still a speaker, a 9V battery applied to the speaker terminals to see if the cone jumps and makes a noise, or a spare speaker wired to the dead one to see if the problem is the head unit or the speaker.

Like a dead home stereo system, without dragging over a spare speaker or amp or a meter, there's no way to diagnose something's dead.

One minor possibility if it's a new vehicle, and it has the RSA (rear seat audio) optional control unit for the rear passengers - if it's turned on, it automatically suppresses the rear speakers and activates some headphone jacks. Some folks have problems with their front speaker hardware, but a failure in the rear might be just this optional feature. Have them read the Owner's Manual, and if it's the typical used vehicle where the former owner's used their original manual for napkins and it's gone - just download a new one from a list under our "Resources" pull-down menu.
Attached Images
 
Reply With Quote Quick reply to this message
  #3  
Old 02-14-2010, 02:40 PM
tjwelshv tjwelshv is offline
Member
 
2006 Chevy TrailBlazer LT
Black 4.2L I6 4X4
Join Date: Aug 2008
Location: Chicago
Posts: 211
well first what type of system do you have Bose or not Bose?
__________________
modders rule the world
Reply With Quote Quick reply to this message
  #4  
Old 02-14-2010, 04:21 PM
brendanthemac's Avatar
brendanthemac brendanthemac is offline
Junior Member
 
2004 Chevy TrailBlazer LS
Imperial Blue Metallic 4.2L I6 2WD
Join Date: Aug 2009
Location: Allentown, PA
Posts: 32
I have a similar issue, but my rear speakers come on occasionally and the sound is fine (i.e. no blown speakers). I have a gut feeling that my stock 04 head unit is just fried internally. Happened after being in Mississippi for two or three summers, i really think the heat/humidity just jumbled or literally fried some stuff in there. For example, the rubber casing for my dc power adapter plug for my GPS literally melted one hot summer day. Let me know if i'm way off base here.
__________________
--Infidel--
OIF, OEF Vet
"Duty is the sublimest word in the english language." Robert E. Lee
Reply With Quote Quick reply to this message
  #5  
Old 02-14-2010, 04:54 PM
JoshH JoshH is offline
Junior Member
 
2006 Chevy TrailBlazer LS
Silver Mist Metallic 4.2L I6 2WD
Join Date: Feb 2010
Location: Texas
Posts: 2
Quote:
Originally Posted by the roadie View Post
Somebody needs to pull a door panel and apply a meter to a speaker or two and see if they get a decently low resistance reading with the power off. But typically you need to use something extra to diagnose this sort of problem. Either a meter to see if the speaker's still a speaker, a 9V battery applied to the speaker terminals to see if the cone jumps and makes a noise, or a spare speaker wired to the dead one to see if the problem is the head unit or the speaker.

Like a dead home stereo system, without dragging over a spare speaker or amp or a meter, there's no way to diagnose something's dead.

One minor possibility if it's a new vehicle, and it has the RSA (rear seat audio) optional control unit for the rear passengers - if it's turned on, it automatically suppresses the rear speakers and activates some headphone jacks. Some folks have problems with their front speaker hardware, but a failure in the rear might be just this optional feature. Have them read the Owner's Manual, and if it's the typical used vehicle where the former owner's used their original manual for napkins and it's gone - just download a new one from a list under our "Resources" pull-down menu.
We did pull the door panel today to take a look at the speaker. I was going to do some checking on things, but my brother in law didn't have a multimeter. I did try the 9 volt trick, and it did nothing. I didn't look, but I'm almost positive they don't have RSA. You are correct about the owners manual, and thank you for informing me about the available download. I think a big problem is the vehicle is a repo. There's no telling what the previous owners did.

Quote:
Originally Posted by tjwelshv View Post
well first what type of system do you have Bose or not Bose?
It is not a Bose stereo.
Reply With Quote Quick reply to this message
  #6  
Old 02-14-2010, 09:50 PM
chevtrlblzr's Avatar
chevtrlblzr chevtrlblzr is offline
TrailVoy Alumni
 
2005 Chevy TrailBlazer LT
Black 4.2L I6 4X4
Join Date: Feb 2008
Location: SE Pa
Posts: 1,339
I heard of many speakers just quitting or cutting in and out on these trucks.
I don't remember ever hearing that the radio was doing that to the speakers. (I do have a bad memory though!)

My vote is the speakers are bad. As roadie said - try a known working speaker.
__________________
TrailVoy National Meet - Carlisle Truck Nationals
Aug 5 - Aug 7, 2011 - Was Awesome
Reply With Quote Quick reply to this message
  #7  
Old 08-26-2010, 10:01 PM
02TBFan 02TBFan is offline
Member
 
2005 Chevy TrailBlazer LS
Summit White 4.2L I6 4X4
Join Date: Aug 2010
Location: Ashdown, Ar
Posts: 171
I just got my 02 TB today and I have the same prob that the OP does. Absolutely no sound out of the door speakers. I do not have that that fancy bose system. It's a stock am/fm cd player model. The radio tunes in stations normally acts like it should. I'm going to rob one of the door speakers out of my 96 and see if its the problem. I have never heard of all 4 door speakers dying but anything is possible with these things..
__________________
2005 Trailblazer LT 4x4 Olympic White
Reply With Quote Quick reply to this message
  #8  
Old 02-07-2011, 11:27 AM
bullardt bullardt is offline
Junior Member
 
2005 Chevy TrailBlazer LS
Imperial Blue Metallic 4.2L I6 4X4
Join Date: Oct 2009
Location: Mulberry, Fl
Posts: 9
Speakers not working

My 2005 trailblazer has had a problem with sound coming from the rear speakers and the driver side for some time. I read somewhere that it could be a ground problem or a serial data 2 problem. I have yet to hear or read if anyone has had the same problem and what they did to fix it.

Since the sound for the low fuel warning, the seat belt alarm, and the door ajar alarm come out of the driver side speaker, I don't have those either.

Any advice?

Tom
Reply With Quote Quick reply to this message
  #9  
Old 04-19-2011, 07:41 PM
KCK831's Avatar
KCK831 KCK831 is offline
Member
 
2004 Chevy TrailBlazer LS
Summit White 4.2L I6 2WD
Join Date: Mar 2011
Location: Cordova, AL
Posts: 240
Quote:
Originally Posted by brendanthemac View Post
I have a similar issue, but my rear speakers come on occasionally and the sound is fine (i.e. no blown speakers). I have a gut feeling that my stock 04 head unit is just fried internally. Happened after being in Mississippi for two or three summers, i really think the heat/humidity just jumbled or literally fried some stuff in there. For example, the rubber casing for my dc power adapter plug for my GPS literally melted one hot summer day. Let me know if i'm way off base here.
Did you ever figure out what your problem was on this issue? My radio will play stations fine but the cd's play for a bit and then start to skip then just quit and it says "check cd" and goes to whatever station I was tuned into before I played the cd.
Reply With Quote Quick reply to this message
  #10  
Old 04-20-2011, 12:01 AM
concrete's Avatar
concrete concrete is offline
Member
 
2005 Chevy TrailBlazer LT
Black 4.2L I6 4X4
Join Date: Aug 2010
Location: Perkasie, PA
Posts: 159
Stock speakers are trash! So many threads on this. Mine started with one not working and then went to 3 not to long after. Replaced the speakers and no issues since.
__________________
You wouldn't put brand new wipers on a busted a** windshield would you?
Reply With Quote Quick reply to this message
Sponsored Links
Advertisement
 
Reply

Quick Reply
Message:
Options

Register Now

In order to be able to post messages on the Chevy TrailBlazer, TrailBlazer SS and GMC Envoy Forum forums, you must first register.

Please enter your desired user name, your email address and other required details in the form below.
(Only letters, numbers, dashes and underscores are permitted for user names)
The user name that you choose is permanent and can never be changed.
User Name:
Password
Please enter a password for your user account. Note that passwords are case-sensitive.
Password:
Confirm Password:
Email Address
Please enter a valid email address for yourself.
Email Address:

Log-in

Human Verification

In order to verify that you are a human and not a spam bot, please enter the answer into the following box below based on the instructions contained in the graphic.




Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
 
Thread Tools

Posting Rules
You may post new threads
You may post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off

Forum Jump


» Sponsors

Advertising Info

All times are GMT -4. The time now is 06:08 PM.


Chevy TrailBlazer and GMC Envoy Enthusiasts - Copyright 2004 - 2009 All Rights Reserved.
All trademarks referenced herein are property of their respective owners.
RSS Feed