Thanks to Sam and Eric at Beat Sonic for their patience with me. They were very friendly and answered all my questions. And yes, you need everything listed below to make this all work.
Here is the stuff you need:
NDS6223EP Navigation and DVD Control Bypass Module
AVC38 AUX Input Cable
IF16STA HDMI to RCA Converter
PC2 RCA Male-to-Male Adapter
HDA3 HDMI Male to Male Adapter
MD826ZM/A Apple Lightning Digital AV Adapter
Amazon.com: Apple Lightning Digital AV Adapter for Select iPhone,iPad and iPod Models (MD826ZM/A): Electronics
Lighting to USB Power Cable
Amazon.com: AmazonBasics Apple Certified Lightning to USB Cable - 4 Inches (10 Centimeters) - Black: Cell Phones & Accessories
Lightning Extension Cable (For a cleaner install)
Amazon.com: Cellularize Lightning Extension Cable (3 foot white) for iPhone 6, 6S, Plus; Pass Video, Data, Audio Through Male to Female 8-Pin Cable. Dock Connector Extender Extension Cable for Lightning: Computers & Accessories
Lockitt POSI-TAP 6 pack wire connectors 20-22 awg - Electronics Cable Connectors - Amazon.com
Follow the instructions they give you and the info from this thread http://www.clublexus.com/forums/ct-2...us-ct200h.html) and it should go smoothly. I have never done anything like this before and it was relatively straightforward. Only snag was getting my big hands behind the radio to unplug stuff. The instructions said something about taking off four bolts once you disconnect all the wires but I couldn't figure it out. Oh well!
Phone: iPhone 6 Plus
Caveat the RCA-HDMI converter needs power which is what the wire tap-in is for. They can tell you which pin to splice power from depending on your year. Here is an example splice for the RCA-HDMI converter (NOT a Lexus) skip to 6:25 to see how to tap the power Beat-Sonic iPhone Mirroring Adapter (Installation) on 2015 Toyota Tundra Platinum - YouTube
The screen is not as clear as the iPhone (obviously) but it's perfect for what it is.
Here are the videso of the final install.
The new tab that shows up
The setting I used for it to fill the screen properly
Here is where I passed the cable through. I looked up this part (part # 5882576010
) before hand before I destroyed it and it's only $14 give or take.
In action (there is no flicker in real life. At ~1minute i refocus the camera):