Share reverse camera feed?

My search-fu might be weak and the info may already be out there...
I'm planning an install of an AVIC X130BT and I'm wondering if I can tap the feed for my existing reverse camera to supply the image to the AVIC as well.
Is the signal part of the data bus, or is it just a composite signal I can tap?

 

I really should have created a more generic thread title to cover all my questions and I cant' see an option to edit the title, sorry about that.
I wanted some of you folks that have already gone through this to double-check my list and let me know if I'm missing anything needed to install...

2008 with 9 speaker JBL

I'm intending to order:
Metra TYTO-01 JBL Amplifier Interface Harness
Scosche 010TA2103B 2004-up Toyota Prius Double Din with Pocket
Metra Electronics 71-8113 TURBOWire Repair Wire Harness
Metra 70-8113 Radio Wiring Harness for Toyota Amp Integration 20 Pin
Axxess Metra ASWC-1 Universal Steering Wheel Control Interface with New Micro B Connector (Black)


Does that about cover things?