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Backup Camera Wiring + Reverse Trigger

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Member - Posts: 1
Member spacespace
Joined: March 05, 2016
Location: Florida, United States
Posted: March 05, 2016 at 2:29 PM / IP Logged  
Hi everyone,
My wife drives a 2006 Kia Sedona LX minivan and I wanted to install a backup camera to make it easier for her to park.
My setup is as follows:
Rockville RVD7.0 Headunit
TopTier Pro Backup Camera
BW Wireless transmitter for the Backup Camera
Obviously, it's a budget setup...
I wired the camera and the wireless transmitter to my driver's side tail lamp reverse bulb. I've confirmed that the wireless transmitter only gets power when I put the van in reverse.
On the back of the radio, I have a Reverse trigger wire, along with a Parking Brake wire and a Yellow female cable for the Camera video input.
If I wire the Red +ive from the wireless Receiver to the Reverse trigger wire, the Ground to Ground and the Parking brake wire to Ground as well, I get no power to the wireless Receiver and cannot select the Camera input on the headunit.
Now, if I wire the +ive off the wireless Receiver & the Reverse trigger to the RED ACC+ wire on the aftermarket harness, I get power to the wireless Receiver, the Headunit immediately switches to Camera, but does not get a video signal UNTIL I put the van in Reverse(which is what I want).
The issue is....when I wire the Reverse trigger into the ACC+ on the aftermarket harness(along with the +ive wire from the wireless Receiver), the radio gets stuck on the Camera input and cannot be changed out(constant power/constant trigger, I guess?).
How do I go about wiring this setup properly so that the radio switches to the Camera input, only when I put the van in Reverse.
Is the Parking brake the reason? Did I do something wrong?
I greatly appreciate your time and suggestions!
2007 Kia Spectra EX 5MT Sedan
2006 Kia Sedona LX
rs specialist 
Copper - Posts: 175
Copper spacespace
Joined: September 30, 2015
Location: Arizona, United States
Posted: March 07, 2016 at 12:24 PM / IP Logged  
Reverse trigger needs to only see 12V when the vehicle is in reverse. It needs to be connected to the reverse trigger wire of the vehicle.
Member - Posts: 23
Member spacespace
Joined: November 07, 2015
Location: Arkansas, United States
Posted: March 18, 2016 at 1:36 AM / IP Logged  
Yes, you need to put the reverse trigger wire from the radio on the reverse circuit. Checking my usual source for diagrams I saw a few different possible locations for the reverse circuit in the passenger cabin, none of which I think would be especially easy for you to find. If you're decent at pulling trim, it may be easier to just run a trigger wire from the rear. Doing that, you'll be able to run an RCA cable as well, which will give you much better, more consistent results than your wireless set-up.
If you end up hitting the reverse circuit in the front area, you'll a have a camera, transmitter, and a receiver as well as your backup lights all on a circuit designed for just a couple of lights. You'll want to relay that from a good switched circuit. Really I think it'd be better just to go ahead and run the wires.

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