Thanks for all of the info! Looks like my additional wiring was reversed on the 5-pin connector. Not surprised it didn’t come prewired on the harness from Phoenix Automotive if this is unique to 06 and 07 models
2007 LC, installed a PX6 Android HU from Phoenix Automotive and followed guidance in this post to jump additional wires to the passenger airbag /seatbelt indicator harness - https://rrcs.zendesk.com/hc/en-us/articles/360041046611--98-07-LC100-and-LX-470-Installation
There are no error codes and...