Hey Travis,
For Neutral Safety, I used the switch built into my ratchet Shifter. Really, it's just wired inline with the "start switch" signal. If it's open...nothing. If it's closes...signal goes through. Not really a component of the coach controls board per se'. As a general statement...I didn't use ANYTHING that was part of the original wiring harness. Nothing about my car is factory...cluster, climate controls, wiper switch, headlight switch....etc. Only thing original is the wiring coming from the column....turn signals, brakes, ignition. Once you order the kit, it comes with a HUGE laminated color schematic that's invaluable. It includes a "power center output activation table" that tells you which outputs are activated and when. Sounds intuitive.....but it was very helpful.