I am going to begin instaling my back-up camera later this week. I've never attempted an installation like this before and i'm looking for some help before i get started.
Pb has helped me with some of my questions, but i still need some more help + i don't feel like bothering him with every little question. for starters i'm using this diagram posted by
Pb because i want the ability to use the back-up camera not only in reverse, but when ever i want.
So here is what i know, i'll run the reverse wire from my HU to the reverse wire in the truck. The rest is what i don't understand.

What will i have to do to have a switch to make the camera work when ever i want? I know it will have to be something similar to the diagram above, but i'm completely confused. thanks for your help.
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3" Toytec, 285/70/17 BFG MT's, Moto Metal 951b,
OME Rear Shocks, TW DS, Grillcraft, hood struts, TC UCA's
black heads & tails, in-dash DVD, Sirius