I have a 2007 chevrolet trailblazer, my car speakers don't have any base and have a high pitch. I recently replaced them with factory speakers off of another trailblazer and they still don't woRk.


Asked by Jun 18, 2015 at 02:54 PM about the 2007 Chevrolet TrailBlazer LS RWD

Question type: Maintenance & Repair

15 Answers


Any suggestions?

1 people found this helpful.

Sound,s like it may be the stereo is bad not the speakers,do you have the bass setting all the way up ?

2 people found this helpful.

What kind of system do you have? It is possible that you have lost the amp.

1 people found this helpful.

Yes its all the way up. The rear speakers dont work at all. The front tweeters are the only thing that works.

2 people found this helpful.

Not sure about the system. Its a factory stereo


Here's a Bose


Its not a bose


If rear speaker,s are not working it will be the preamp,built in to the stereo

1 people found this helpful.

Here's standard


With /EQ


Radio swap didnt work... I had the same problems. Swapped for an aftermarket radio, purchased the correct connector and the sound from the speakers is the same as it was. As far as I know the OEM radio is not a Bose system, it doesn't say Bose anywhere on the radio or dash....Just a regular am fm cd player

1 people found this helpful.

Trlblzr manual eom radio has listed that they use a bose system (I was surprised to with no bose label)... Did u get to figure out your radio problem? I bought a 2007 and the radio and speakers (front speakers play but with no bass sound and back speakers are not playing at all)....any help would be greatly appreciated.

4 people found this helpful.



I have a 07 trailblazer as well with the same issue. The front speakers work only. I checked the fuse and its good. Trying to narrow it down to the stereo itself or the amp (which i'm not sure where its at. I think its under the back seat with in the fuse block??? I will come back if I figure it out.

2 people found this helpful.

I have a 2007 trailblazer and I am having the same problems with low sound and the rear speakers don't work.

Your Answer:


Looking for a Used TrailBlazer in your area?

CarGurus has 3,431 nationwide TrailBlazer listings starting at $988.


Chevrolet TrailBlazer Experts

  • #1
  • #2
    Tom Demyan
  • #3
View All

Related Models For Sale

Used Chevrolet Tahoe
674 Great Deals out of 38,545 listings starting at $995
Used Jeep Grand Cherokee
1,161 Great Deals out of 74,220 listings starting at $750
Used Chevrolet Silverado 1500
1,860 Great Deals out of 158,323 listings starting at $1,000
Used GMC Envoy
43 Great Deals out of 1,602 listings starting at $1,990
Used Dodge Charger
332 Great Deals out of 30,194 listings starting at $2,000
Used Chevrolet Impala
518 Great Deals out of 26,213 listings starting at $995
Used Chevrolet TrailBlazer EXT
6 Great Deals out of 762 listings starting at $2,499
Used Dodge Durango
338 Great Deals out of 23,795 listings starting at $1,750
Used Ford Mustang
303 Great Deals out of 40,193 listings starting at $1,312
Used Ford Explorer
926 Great Deals out of 70,971 listings starting at $1,275
Used Chevrolet Equinox
1,231 Great Deals out of 88,471 listings starting at $995

Content submitted by Users is not endorsed by CarGurus, does not express the opinions of CarGurus, and should not be considered reviewed, screened, or approved by CarGurus. Please refer to CarGurus Terms of Use.