Nobody knows?
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How I installed it on my ram 4 easy peasy steps:
Step 1: Run two wires down the underside of the body to the rear of the truck, bring them up into the engine bay.
You run one into the cab (from engine bay through the firewall into the cab) which hooks up the head unit and switches the head unit automatically to show whats behind you, the other side of this wire you splice inline with the tail lights at the rear.
The second wire you ran is for 12v+, fuse this to the battery with a 2-3 amp fuse, nothing larger!
Step 2: Buy an automotive relay, $5-7 at radioshack/auto store.
Step 3: Now using this diagram below wire up the relay:
Connect Pin 87 to the Fused 12v+ from the battery.
Connect Pin 85 to a bare spot on the frame.
Connect Pin 86 to the reverse wire (spice into the wire that is sending the signal into the cab)
Connect Pin 30 to the (+)Positive lead on the rear view camera.
Don't forget to ground the other wire on the rear view camera source.
Step 4: Check all connections and enjoy.
I used heat shrink on all of my connections as well as soldering all of them for secure waterproof connections. I even took a large piece of heat shrink and put it over the relay to get the longest life out of the relay I can.
Reason for doing all of this, its the safest way of hooking up the camera as you are not putting ANY loads on the stock wiring at all.
I had to re install mine the way I listed above because I tried to power the camera off the power of the reverse wire.
You will need a multi meter and someone to help you put it in reverse to figure out what wire color combo is the reverse trigger. Best way is to pull the tail light out and just multi meter the connection plug.
EDIT: Not sure of the color but if you have a tow connector on the rear bumper, it should be the center wire going to the connector. Its white with red stripe.
I think I covered everything, good luck and post if you run into anything.
