Steps 4-9. (the longest part)
Connect and verify all of the wiring connections between the Crux harness, stereo, backup cam, and mic. I use closed end crimp terminals after twisting the wires together.
10. Transfer the brackets and the plastic side plates from the Metra kit to the new stereo
11. (not pictured, did this previously) run the backup camera wiring along the driver side floorboard wire channel, three wires - RCA for video, ACC power so the camera is always on, and reverse signal to the yellow/red wire for automatic switching in R.
12. Connect and verify before making this tidy
13. Tidy up with tape so it isn't so messy behind the dash, then carefully push it into place!
14. Voila. Test for functionality, check all speakers, mic, USB, SWC, and aux functionality before buttoning all the trim up in reverse order!
15. Lastly, measure out the reverse cam distances for referencing. For me, the bottom of the screen was 2ft from the hitch and the middle yellow line across the screen was 4ft. Schweet.