Sounds good. Will do the camera for now and the Apple TV later once firmware available. Question for you, the JL instructions on Tazer website only mention pinning 24 and 25 for cargo camera without going into DVD or audio inputs. The generic A/V instructions include 8,9,10,21 and 22. Did you use the general instructions for pinning the DVD input?I've been working with Tazer and it seems there may be an update coming out very soon that unlocks the other video input. I will update the thread once this happens and I have tested it. As for now, there is not a simple way to incorporate the iPhone video into the screen, outside of using the cargo cam input. Then you would still need to get some type of digital to analog conversion.
Give it time. There will be a solution.
Did you buy this harness and it included DVD input cables for the JL? Same part number as the non-JL harness? https://zautomotive.com/product/av-cables/