Should be in 'camera' and if you're feeding it 12v and it's grounded correctly, it should technically switch straight over to camera as soon as you feed it live power.

Make sure your car is running, not sure why, but someone else had an issue not being able to get the camera to work, was testing with the ignition in position 2 and getting no result. Turned the car on and put it into reverse, it fired up fine.

You didn't say anything about connecting the green reverse trigger wire on the Dynavin harness....

Uh oh, that might be it

Edit:
I've been reading through a ton of posts but couldn't find a firm answer to where to connect the green wire. I would think I need to run another wire and connect it to the relay. It would come hot after the reverse light causes the relay to close.

Yep, need to trigger the reverse wire with the output wire of the relay. Probably the same output you are using to power the camera itself if you have it installed like most do.

Ok, after wrestling with this another day I might have a bad camera. When I feed the reverse trigger with 12v it switches over. After some troubleshooting I've found that the camera is causing a voltage drop down to 6v. So when the camera is tied in the voltage drops too low for the Dynavin to pick up. I had the multimeter on the circuit when I plugged the camera in. The voltage drop is instant.

Sound right?

Did you test the camera before installing? Easiest way to do it is to hook up a 9v battery to the pos and neg leads of the camera and hook up the RCA out to your TV or receiver. I always do this before installing a camera.

Make sure the camera works. If it does... something is wrong in your relay wiring.

I will test the camera. For troubleshooting purposes I took the relay out of the circuit. I just used a constant 12v(not the reverse light) and a ground.

Now I'm really stumped. I tried the 9v battery test and the camera worked great in my living room.

I put it back in the X5 and it doesn't work. My next steps:

I tried feeding the trigger wire and camera from different circuits, nope?
I had a long spare video cable and ran it to the Dynavin, nope.
I unplugged the camera from the X5's power and hooked it up to the 9v battery, it works! So the camera works off of a 9v battery and not the X5's 12v?

Since I still have the trunk torn apart I tried to feed the camera directly from the battery post. The second I touched the camera + to the positive post POOF. The only other thing hooked up was the video cable.

I tried it again with just the 9v battery and it works fine.

???

how did you tap the reverse light circuit? Crappy "scotchlock" add a circuit wire clamp thing? If so, those are terrible, nothing but trouble. Cut and splice, solder, whatever, but dont use scotchlocks.

At this point I'm not using the reverse circuit. I'm just trying to feed the camera with 12v and hoping for a picture. The previous owners had eliminated the CD changer to I'm using that 12v for a feed.