Garbage support model Out in the heat, my dash is apart, there are no instructions, no explanation of codes or labels. First, I go to a URL, bad enough, but I get a 404 error. I download the clunky app, choose my truck model, and I get a cryptic wiring diagram without any explanation of what other connections are for, or if they are unused. The wiring diagram says black is ground, red is positive, and yellow is something else. Uh...hello...your harness has two black wires, and two wires that are pinkish red. Has anybody at your outfit ever actually installed one of these? I just want to install and use steering wheel controls. Reprogramming this will not become my new hobby where I spend 3 nights a week tweaking it. I don't need an app, I need clear install instructions and I never want to think about it again. No problem with Maestro,