New Nav ECU did the trick!
I ordered the GX470 Nav ECU for $120. I ended up getting the same exact part number I already had installed (86841-50090). I thought I was going to receive (86841-0E010).
I did attach the Prius Network Gateway before I got the Nav ECU, obviously no change. I am afraid to plug in the Prius Network Gateway now that I have a functioning system tho.
I've never had a functioning Nav ECU since getting the cruiser in 2020, so its fun to tap around in it. I swear my screen is more responsive than it was before.
The AC controls are bac
(GX470 replacement on top, my defective one on bottom. My unit was pretty beat up...)