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Question
Does a 2000 blazer, (4 door, 2 wheel drive ) have external radio amps? If so where is it located? My back 2 speakers are out. Could this be the problem?
For the S series the answer is "no". Some models may have deluxe systems otherwise:
http://www.the12volt.com/installbay/stereodetail/437.html
Also, see here for more details of this model:
http://www.installdr.com/InstallDocs/GM/PDF/460029.asp
If the 2 speakers are not putting out audio it could be any of these three causes:
- Speakers are bad (voice coils gone open from over driving audio)
- Wiring to the speakers gone open circuit or shorted down.
- Amplifiers in head unit gone bad.
Hope this helps.
PS; All the above being said, if your car has the Bose system, then, "yes" there is an amplifier. In most Bose systems of that vintage the amplifiers are mounted directly to the basket of the speaker. If the amp is bad it must be replaced with the exact Bose replacement unit. Bose systems are not compatible with other makers.
In this case, go to Crutchfield for further guidance on system replacements:
http://www.crutchfield.com/app/car/carselector.aspx?lp=%2fApp%2fCar%2foutfitmyca...
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Answers by Expert:
Cleggsan
Expertise
Audio Design Engineer; systems, loudspeakers, cd/dvd players, etc. I am knowledgeable in all high end audio equipment and installations. MAKE SURE YOU GIVE A MAKE AND MODEL NUMBER AND CAR IF IT IS AN AUTO QUESTION. Note: I am getting some who ask good questions that take a lot of time to research but then the questioner fails to read the answer. Please don't ask questions unless you are seriously looking for an answer. If you find an answer to your question otherwise then let me know with your reply. Thank you.
Experience
Have been associated with audio design, standards, testing and component systems for over 40 years.
Organizations
Life Fellow Member of Audio Engineering Society
Life Senior Member of Institute of Electronic and Electrical Engineers
Publications
Review technical manuscripts for IEEE Spectrum
Write occasionally for high-end audio publications
Education/Credentials
BSEE/MSCS/MBA
Past/Present Clients
Past Employee/advisor to several well known audio products manufacturers
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