Need help with wire connections for a backup cam

Hey guys, I bought a new backup camera online and it came with no directions. It's brand new and all paperwork is vague and generic. The one wire diagram doesn't even show the kit I ordered.
Anyway, if someone could lead me in the right direction I'd be extremely grateful!
Here's the kit


The thing that's throwing me for the biggest loop is the red wire coming out of the video connector on the camera harness. If power comes from the other red wire black grd wire bundle what does the other red wire go to?

 

Edit: never mind I'm an idiot. Figured it out by testing it with a 9 volt battery. Works perfectly. Way easier than I thought it would be.