The wires are in between the brake light and the C-pillar. With your hook tool, reach between the headliner and the roof of the car and pull the wires towards the rear window. Unplug the gray two-pin plug. This will give you a couple of inches of wire to complete the installation.
There are 3 types of Brake Plus modules: Regular, Black Stripe, Red Stripe
Be sure not to crease the headliner.
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Are you having issues with installation? Check out our troubleshooting guide for common errors associated with the installation of Brake Plus.