Open the hatch. Remove the pins covering the screws behind the light. Remove the light to access the wires at the light. Remove the light for a simpler install. There is a black loop wire in the harness with the brake light wires. Do NOT use the black loop wire--it is not a ground.
There are 3 types of Brake Plus modules: Regular, Black Stripe, Red Stripe
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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.