2011 Suburban - d-pillar speakers?
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From: Austin, Texas
You will need to see if you are getting any signal back to the rear speakers or you can check the rear speakers.
You can use a small battery to apply voltage to the speak and see if it responds or check it with a meter for resistance typically 2 to 8 Ohms
You could also put a working speaker and check to see what voltage output you get at the connector and see if you get the same at the non working speaker location(s)
You can use a small battery to apply voltage to the speak and see if it responds or check it with a meter for resistance typically 2 to 8 Ohms
You could also put a working speaker and check to see what voltage output you get at the connector and see if you get the same at the non working speaker location(s)
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