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Audio Systems/Problem with 2000 GMC Truck

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Expert: - 12/21/2009


Question
I found a post where you stated you had a 2000 Truck with an aftermarket stereo in it so I was hoping you could answer a question I had.  I just installed a new stereo in a 2000 GMC Sierra.  I have the correct wiring harness but when I shut the truck off the chime in the door goes crazy for around 5 min unless I flip the truck dimmer switch all the way off.  It then shuts off and everything is normal.  Also I discovered that the dimmer switch no longer dims the control panel.  Did I hook this up incorrectly or do I need an adapter of some sort?  Thanks for the help.

Answer
Yes, it is a wiring problem and you will have to change a connection.

Check the wiring of your installation against this wiring chart:

http://www.the12volt.com/installbay/stereodetail/1001.html

Seems the dimmer wires are crossed up somehow.

Hope this helps you get it straightened out.  

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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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