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Message: <blockquote data-quote="KaeZoo" data-source="post: 940491" data-attributes="member: 554753"><p>There IS a factory amp in some models of the Tahoe, that runs one pair of speakers.  Make sure your head unit's remote turn-on wire is connected to the factory amp's remote wire.  It may or may not be in the "power antenna" wire location in the factory harness.  It is often a pink wire.  If you still have the stock head unit, you can use a multimeter to identify which wire in the harness shows 12v when the radio is turned on.</p></blockquote><p></p>

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