Audio Systems/Auto stereo

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Expert: - 9/6/2010


Question

Mach 460 stereo - back
Good morning,

I have a 1999 Ford Mustang GT with a Mach 460 stereo. It has a radio receiver unit above with a CD unit below it. I recently bought the car from someone who had an aftermarket stereo in the radio/receiver area. The original CD unit is still installed. He had removed it saying he lost the faceplate for it. All the original harnesses are there and nothing appears cut or tampered with.
I found a used Mach 460 radio that supposedly was in working condition, although I never heard it. I put all the harnesses on and everything appears to work - displays, controls and the CD. However, there is no sound. Volume goes up and down on the display but nothing comes out of the speakers. All male and female pins look fine. Am I missing something? The bottom right opening of the back of the stereo does not have a corresponding plug for it in the car. (see attached picture). I checked for any additional wires/harnesses, but didn't see any and nothing appears cut. Not sure if that's it or not. Any help would be much appreciated.

Thanks
Chris

Answer
Signal is not getting to the amplifiers or the amplifiers are not functioning.  Please check them out.  You did not say if you are getting sound from the radio unit?  If you are the amps are working, but maybe not switching on.

You can google for the wiring colors; make sure they are all connected properly.

This information may be of use to you in troubleshooting:

http://www.installdr.com/InstallDocs/FLM/PDF/356045.pdf

Hope this helps get a solution.  

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.

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Life Fellow Member of Audio Engineering Society Life Senior Member of Institute of Electronic and Electrical Engineers

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Review technical manuscripts for IEEE Spectrum Write occasionally for high-end audio publications

Education/Credentials
BSEE/MSCS/MBA

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Past Employee/advisor to several well known audio products manufacturers

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