Actually, it is not nearly as complicated as you might think...
There are two wires of interest going into the factory radio/display.
The first would be the reverse wire that switches the camera display on. I don't know if it is pulled to ground or 12v to operate, but a quick check of the service manual will tell. I would use a toggle switch and a couple diodes to activate the display when needed. The diodes keep you from activating the backup lights or brake controller when you turn it on.
The second would be the reverse camera video input. This could be put on a switch to select between your backup camera and a camera on the front (or any other video input such as a dvd player or ipod)...
It really is a pretty easy install if you don't mind cutting a couple wires and doing a little soldering.
I am not near the service manual, but could throw a simple schematic up here if interested.
There are two wires of interest going into the factory radio/display.
The first would be the reverse wire that switches the camera display on. I don't know if it is pulled to ground or 12v to operate, but a quick check of the service manual will tell. I would use a toggle switch and a couple diodes to activate the display when needed. The diodes keep you from activating the backup lights or brake controller when you turn it on.
The second would be the reverse camera video input. This could be put on a switch to select between your backup camera and a camera on the front (or any other video input such as a dvd player or ipod)...
It really is a pretty easy install if you don't mind cutting a couple wires and doing a little soldering.
I am not near the service manual, but could throw a simple schematic up here if interested.
