Android head unit installed using all factory equipment!

I recently bought an aftermarket Android head unit to replace the JBL unit in my 2010 Prius. I wanted to use the factory camera, mic, and antennas so I began doing some digging looking for info. Several posts here and elsewhere had partial info, but I couldn't find anyone who had posted how to use the factory mic. There were posts for other Toyota models, but not my Prius. I figured it out and thought I would post it here for the future installers. Thanks to many others who have posted wiring info.
The key with this implementation is a signal labeled MIC SNS2. This is an active high muting signal that is pulled up on the mic amp board, but must be low to enable the mic. I tied it to GND through a 50 Ohm resistor, in case something else tried to drive it, but I suspect it can simply go directly to GND as the original JBL unit was likely the only driver. I also added 1K resistor in series on MIC+ (not the 100K I saw everywhere else). It's worth noting that it worked without any series resistor, but adding the 1K reduced the background hiss without reduce gain significantly.
Here are the details of all of my mods: