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show me how the symbols look for a 2007 Chevy trailblazer
lower left corner on dash or on Driver's Door.
A double din unit will fit in the Trailblazer/Envoy platform vehicle however you will need adapters. If you are experimenting then you are best to let a pro do it.
Answer If I'm not mistaking the dash board speakers on your car are under the dash, close to the windshield. I think you would have to remove the entire dash to be able to get at them so do yourself a favor, put good speakers in when you install them, as taking the dash apart is one heck of a job.
For the front speakers you need to take off the dash pad and the rear speakers you need to take off the rear speaker panels.
There are two tweeter speakers in the very front of the dash. There are two speakers next to the driver and passengers legs. And there are two speakers in the rear.
Which speakers? Usually if you have a four door, there are two 4x6" in the dash, and 6 1/2" in all four doors.
It is a very simple install. Pretty much a plug and play. You'll need a philips screwdriver and a 7mm socket. Remove the dash and radio, then route the wires where you want to mount everything. Put it all back together and your done.
The speakers were all recalled due to a vibration in them. Take it to the Jeep dealership and they will replace all the speakers in the car at no charge.
The speakers i put in the dash of my 98 were 3.5 inch speakers!
I had taken my car to circuit city to have speakers put in my 1990 Cad deville. They said they had to pull the dash off to put the speakers in the car. Sorry not more info.
There are no dash speakers.Just 6.5" door speakers and ~1.25" tweeters.