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Onstar

bigeazy360

By bigeazy360
in Ask A GM Technician

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bigeazy360 New Member

bigeazy360

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i just bought a 2008 gmc sierra and put a line out converter in oi cut the brown and yellow wires and the blue and light blue wire soldered the wires back together and hooked up amp all the sudden i cant make calls or speak to onstar

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