2007 Chevrolet Silverado 1500 Trailer Brake Control Harness Equip cars, trucks & SUVs with 2007 Chevrolet Silverado 1500 Trailer Brake Control Harness from AutoZone. Get Yours Today! We have the best products at the right price. How to Wire a Trailer Brake Control to a Chevy Silverado Chevrolet Silverados were factory-fitted with an in-dash "plug-and-play" harness for the fitting of aftermarket brake control before model-year 2007. Later model years still have the wires installed, but because they do not end in a terminal multi-block, some hardwiring is required.
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