rear view cam auto switching - would this work?
Im going to be setting up a rear view camera where the video output is sent to a VGA switch box. When the reverse lights go on, a relay is powered and the switch to switch video inputs on the vga box is triggered.
Now I want to also add a manual pushbutton to engage the rear view camera when the reverse lights are not on.
Would something like this work?
I really have no electronics background and do not know how to use diodes properly really but from my limited understanding wouldnt the above be the proper use?