Answer
Aug 06, 2018 - 07:05 AM
Starting in 2007, all GM models do not have a factory connection. But they do provide loose wires under the dash to hook the brake controller to.
So you will have two options:
Use your current harness but cut the plug off on the vehicle side so it can be hardwired.
Or
Buy the Universal Harness 81789-HBC, which has a plug for the controller on one side and loose wires on the other for hardwiring.
So you will have two options:
Use your current harness but cut the plug off on the vehicle side so it can be hardwired.
Or
Buy the Universal Harness 81789-HBC, which has a plug for the controller on one side and loose wires on the other for hardwiring.
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