Originally Posted by chrischhorn

You can splice to the harness of your license plate lights or just splice it directly into your brake light harness. I spliced mine into my brake light harness so I could do the blinking when I brake and the light comes on with my headlights/parking lights. I still wonder if I should've done the blinking with the reverse though since as stated earlier. I'm sure the blinking while on the brake could be annoying to drivers behind lol.