I followed instructions for a camera install around the forums and ran into a hiccup. I've got a camera mounted in a pop & lock, run under the tailgate, grounded at the tail light (the harness near the spare), power and RCA run up to the cab. The red power I tagged into the red and white reverse wire (using one of those blue squares that taps into a running wire), then put an RCA extension using the inline connector into the rear of my HU. Thought that was it so I turned the car on and got nothing in reverse. I re-reviewed the HU manual (Boss BVN9370NV) and noticed there was an orange "backup camera trigger" wire that I just closed and didn't bother with because I thought it was all setup. Is there something I'm supposed to do with that wire? Does anyone have any idea what I could've done wrong?
Thanks for your help.