In Dash Monitor Wiring

Yea yea I hear you on the green. You know JVC, Pioneer, Kenwood, who else ummm Clarion. Alpine is yellow/black or yellow blue (not green). Most may say otherwise but Jensen/Audiovox is a major player and their brake wire is pink (green?) But anyway does that look any of those? Pyle is brown on their flip outs. Its not a law for those units to be sold without a parking wire. While the ones listed have it to obey the laws of no video brodcast whie driving, the units with no dvd/cd player dont have to have it. Yes they do! Umm... no..... their is no parking wire because who's to say what your displaying? Maybe your cd player has a screen saver? maybe navigation? which is not illegal to view. See what im getting at? How about a rear view camera?!?!? Still no illegal. I want guy to learn not just read. Use the meter!