07 silverado LT

Discussion in 'General Chevy & GM Tech Questions' started by pvcableguy, May 20, 2010.

  1. pvcableguy

    pvcableguy New Member

    my 07 silverado has manual folding power glass side mirrors, i want to upgrade same but with turn indicators in the mirrors...do i need to replace the wiring harness in each door?..or does the truck have it already???

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