LOL - I did the exact same thing a couple of months ago! Huge Difference.As with the above posts, I got an aftermarket camera that cost about $30, comes with an RCA cable that also has the trigger wire in the same sheath.
Camera gets + and - from the reverse globe wiring in the rear lights, and the trigger wire that is in the RCA cable also goes to the + of the reverse light.
From there when you get it to the stereo, the RCA goes into the Video input of the deck you have and will usually be labelled as 'reverse' or something similar, and the trigger wire will also go to a wire labelled similar.
When you put the car in reverse, it will power the camera and send a 12v trigger to the stereo to change input to show the reverse input.
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Funny story, I mounted my camera within the bumper at the back to the left of the license plate as I wanted a clear view of my tow bar.
I failed to remember that the license plate lights are there as well and at night it washes the image out.
So... I wired up a relay that when the car is in reverse it turns off the 1 license plate light so it doesn't wash out my image.
Looks like we both learnt the hard way!LOL - I did the exact same thing a couple of months ago! Huge Difference.
Mine is mounted centrally above the number plate so I have both number plate lights turning off.
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