Ignition noise thru stereo even when radio is in off position--less when radio is on with volume control at lowest level.
The website that I am referring you to specializes in noise prevention in your sound system. If you click on the link and scroll almost down to the bottom of the page there is a section specific on ignition noise through your stereo. http://www.termpro.com/articles/noise.html Hope that helps!
your car has a bult in sound supresion sys. i think you have a short in you sterio sys . be it in the head unit or in the harness
You most likely have a short or unshielded wire that is allowing interference or electrical noise to be transmitted. It is in all speakers, or just one in particular?
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