Chevy TrailBlazer, TrailBlazer SS and GMC Envoy Forum banner

21 - 40 of 42 Posts

·
Registered
2007 chevy trailblazer_ls
Joined
·
15 Posts
Update: replaced my speakers and they all work perfectly now. I still don't know about the dash light situation, but as soon as I get a new HU I will inspect the wiring when I am installing it and then report my findings back here
 

·
Registered
2005 chevy trailblazer_ls_ext
Joined
·
23 Posts
Radio issues

had the issue, and found the power wire to the climate control unit had worn through the insulation and was grounding out against the ground wire, which also was worn through the insulation... Pulled the unit and soldiered in new wire, and added heavy duty shrink tubing and no problems for 3 years.
I'm going to look into that thanks:)
 

·
Registered
2005 chevy trailblazer_lt
Joined
·
11 Posts
I to have that issue on my 2005 trailblazer, but my speakers now dont have no sound at all.. I changed the factory stereo and bought something else and still no sound.. Then changed the bose amp and still no sound.. Mabey might be a wire problem.. Please does any one have suggestions..
 

·
Registered
2005 gmc envoy_denali
Joined
·
28 Posts
Blaze, If your system is equipped with a factory amplifier, the factory radio has a low power level going to the amp. Aftermarket radios have built in amplifiers with high output and would probably blow out the factory amp. check to see if there is a factory amplifier behind the plastic panel in the rear passenger side hatch area first. If so you will need to bypass the amplifier.
 

·
Registered
2005 chevy trailblazer_lt
Joined
·
11 Posts
Blaze, If your system is equipped with a factory amplifier, the factory radio has a low power level going to the amp. Aftermarket radios have built in amplifiers with high output and would probably blow out the factory amp. check to see if there is a factory amplifier behind the plastic panel in the rear passenger side hatch area first. If so you will need to bypass the amplifier.
Yes it has a bose amp on the passenger side.. My first tought was mabey my bose amp dont work anymore so i bought another one on ebay and still nothing i still had my factory radio when i did this.. the my second tought was well what if its the factory radio so i bought an aftermarket one and still nothing :( im thinking now its either a wire problem or my speakeras went out.. and by bypass what do you mean??
 

·
Registered
2005 gmc envoy_denali
Joined
·
28 Posts
I copied a link for installing an aftermarket amp but the pictures are good and it gives you the color codes for the wires. If you have a voltmeter, first check power and grounds going to the factory amp. Then tune the radio to static (just noise no music) test for AC voltage at the speaker (wont be much but it should go up as the volume goes up). If there is no voltage at the speaker its a problem in the amp/wiring. If voltage goes up with the radio you have bad speakers. There is an adapter you can buy to use aftermarket radios with the bose factory system. I would recommend that, or you will probably have poor sound and overdrive the factory amp.

http://forums.trailvoy.com/showthread.php?t=40817&highlight=aftermarket+amplifier
 

·
Registered
2005 gmc envoy_denali
Joined
·
28 Posts
Also, people have had a lot of problems in the rear radio controls on the back of the console. Just another place to troubleshoot. Good Luck.
 

·
Registered
2004 gmc envoy_slt_xuv
Joined
·
21 Posts
Radio completely dies, fuse good.....

:suicide: I've owned an '04 XUV SLT since new, and it now has 150K - and never a real problem. Last week I bought another '04 XUV with 37K original, and on day 2 the radio just died - no time showing, no nothing. I pulled the fuse, found it OK and put it back. Voila!, radio worked - for another 4 days. Then, last night, while on the highway, the radio up and died again. When I got home I pulled the fuse and kept it out overnight, put it back in this morning, and still nothing. Everything else - climate control, dash lights, door chimes, etc. - all work perfectly.

My 40 years of 1960's to 1980's auto restoration experience tells me the radio is bad - but with the advent of on-board computers and 'programmable" radios, I'm not positive. That said, I'd rather spend $50 on a replacement radio than spend three hours crawling around with a tester checking for bad wiring, however. BUT, the thought of giving the stealership another $50 on top of that to program a replacement radio to work with my car's computer just frosts my cookies even more.

Does anyone have experience with just the radio crapping-out and, if so, what was your fix - was it truly just the radio?

Also, is the radio in the '04 a model that requires reprogramming? iIf not, then I'm going to pull the radio from my other '04 XUV and see if it works in the new one.

Thanks, in advance, to all those TrailVoy'ers who have helped in the past, and continue to help everyone who needs it!:):):)
 

·
Registered
2004 gmc envoy_slt_xuv
Joined
·
21 Posts
Interesting Info on Dead Radio

Well, I pulled the radio out of my XUV and discovered that it had been replaced before with a "Delphi Remanufactured" unit. So, I figured once broken, broken again! But, upon looking for a matching part number replacement I discovered that my particular radio was a very limited production, and wasn't readily available on the secondary market. I Googled the GM part # and found SPL Electronics in Missouri advertising coded/uncoded GM radios. I called them and they were as helpful as could be, asking me all the right questions, ultimately saying that to save me money and aggravation I should pinpoint the exact problem. He gave me a two-step recommendation: First, verify that I had voltage to the B1 wire on the radio harness - if not, power problem. If B1 had voltage, then likely radio problem. If it became a radio issue, as they would not be able to supply me with an unlocked unit and it still might not be the real problem they suggested I contact United Radio Service in East Syracuse, NY for further assistance (they are GM's repair choice).

I went out and tested B1 and found it had the necessary voltage, so that suggested the problem was with the radio. So, I called United Radio. They were also extremely helpful, with the tech suggesting I first try disconnecting the battery for 5 minutes to see if the BCM would reset the radio. I did exactly that and the radio came back to life - only to be dead again the next time I started the car (an hour or so later). Before driving 60 miles to work this AM, I disconnected the battery and tried the reset again, and it worked. At least I had music to keep me awake. Of course, when I went out at lunchtime the radio was, again, totally dead. I called United back, reporting what had happened, and the tech suggested two courses of further action - first, I could send them my radio and they would bench-test it to make sure it wasn't a bad control module (their likely cause). If it were bad, they'd repair it within 24 hours and get it back to me. If it does test OK they suggested that I reinstall it and take it to my GM dealer and have them hook my car up to a Tech II and see if the BCM is sending the radio the correct signal to activate it.

All this may take some time to properly diagnose, but at least I have the proverbial roadmap to follow. I will report back as the diagnosis - and hopefully the solution - progresses.

In the meantime, I highly recommend SPL Electronics and United Radio Service!!:thumbsup::thumbsup::thumbsup::thx
 

·
Registered
2005 chevy trailblazer_lt
Joined
·
11 Posts
I copied a link for installing an aftermarket amp but the pictures are good and it gives you the color codes for the wires. If you have a voltmeter, first check power and grounds going to the factory amp. Then tune the radio to static (just noise no music) test for AC voltage at the speaker (wont be much but it should go up as the volume goes up). If there is no voltage at the speaker its a problem in the amp/wiring. If voltage goes up with the radio you have bad speakers. There is an adapter you can buy to use aftermarket radios with the bose factory system. I would recommend that, or you will probably have poor sound and overdrive the factory amp.

http://forums.trailvoy.com/showthread.php?t=40817&highlight=aftermarket+amplifier
Ok well thank you so much for your help :) but i have an update on the work ive done.. well i did pull the speakers out and tested one using battery D size and touching positive to positive and neg to neg. I read if the speakers gives you a static/ popping sound then the speaker is good.. im now sure its a problem in the wiring of the car. but i can diagnose this by getting a voltmeter and putting it directly to the plug that goes to the speaker of the truck. But i wanted to know if you knew how am i suppose to know that my wire is sending power to the speaker using a voltmeter. What should the voltmeter indicate? Thank you
 

·
Registered
2007 chevy trailblazer_ls
Joined
·
15 Posts
Update 2

Replaced the stereo now. New speakers haven't had any issues. Didn't see any problems with any of the wiring. Added an amp and a 10" sub. Everything working fine. As far as my issue, I'm convinced it was just the speakers. Still don't know what's up with those dash lights being out.
 

·
Registered
2002 chevy trailblazer_ls
Joined
·
1 Posts
Radio Problems

I have a 2002 Trailblazer and I first notice the speakers on the drivers side would work and not work. Now the radio has an echo chamber effect and needs the volume turned up high to listen. The other day I did noticed that whenever I have the key in the ignition and the door open the buzzer sounds, the radio works fine and without the buzzer the radio has the echo effect. I'm thinking that it might be tied into the ignition switch. I've had other problems with the car and replacing the ignition switch cured the problems. Any other ideas? thanks
 

·
Registered
2007 gmc envoy_sle
Joined
·
9 Posts
Speakers going on and off

I also have developed this issue with speakers going on and off with my 2007 Envoy. It's been going on for 6 months or so, but I wasn't motivated to fix it because there was always at least one speaker working, and no other issues. Well this weekend, all 4 were out, and only the tweeters were on. Kids were upset that Katy Perry wasn't playing properly, something must be done! Then today (Monday) both fronts were working fine again. ??
I read through a few of these radio threads, and the consensus is that the speakers are blown. It's bizarre because they all take turns, and when they work they sound fine, not blown.
I assumed it must be a loose connection behind the radio, but checked here first.
I'm going to replace some speakers and report back.
The OEM aftermarket ones are at least $75 each online, and probably crap too. Anyone have a suggestion for speakers that will fit? I'm in the Toronto area, West GTA.
 

·
Registered
2008 chevy trailblazer_ls
Joined
·
2 Posts
I replaced speakers in our 2007 trailblazer and it fixed the same problem you are describing. I was almost positive that there was a wiring problem or short somewhere til I saw this thread. The sound was intermittent to non existent prior to replacing them. Haven't had a problem with sound since. I don't remember the specific brand but purchased at Best Buy. Hope this helps.
 

·
Registered
2007 gmc envoy_sle
Joined
·
9 Posts
Speakers Replaced

I replaced the two front speakers last night, and they work great. It's strange, but you are correct. Blown speakers.
I bought 4 ohm 6.5" 300watt speakers from the local electronics shop for $39 per pair. The speaker cone can easily be unscrewed from the OEM housing and swapped out.
I'll do the rears later this week.
 

·
Registered
2005 chevy trailblazer_lt
Joined
·
1 Posts
Similar Issue

A couple months ago I started having radio issues on my 05. Then yesterday I noticed my rear right running light was out (2nd time in as many years). Replaced the bulb. Nothing. Switched with another to make sure the bulb was good. Nothing. Ugh!!!

I don't even know where to begin with the speaker issues...
 

·
Registered
2007 chevy trailblazer_ls
Joined
·
2 Posts
Here I thought I was alone with my radio issues. I ordered a used oem radio off ebay to try to fix the issue and it didn't work. Sounds like I'm going to try speakers next. Last I looked they appeared to be ok but I guess looks can be deceiving.
 

·
Registered
2007 chevy trailblazer_ls
Joined
·
67 Posts
re

The circuit boards inside the radio are pretty weak, and the speakers aren't very good either. I replaced my radio with a nice Kenwood unit and it sounds pretty nice. Now the speakers are starting to break down. I guess I will be changing those out soon. Crutchfield sells radio's with install kits and wiring harness adapters so your new unit will install easily. They also have direct replacements for the OEM speakers so you don't have to fiddle with wiring or cutting holes. This is the route I took for the stereo and the way I will go with the speakers. Hope this info helps someone!

As for the light segments inside the sliding bar heat control for passenger/driver. I removed my unit, opened it up, confirmed the bulb burnt out on the circuit board. Bought a set (2) of bulbs from radio shack with pigtails and replaced them both using a soldering iron. Re-asembled and reinstalled. No problems for over a year now.
 
21 - 40 of 42 Posts
Top