For those who used the wiring for the sunroof, which wires did you use?
Edit: disregard, I figured it out. For those who want to do this in the future, you can get Ground and Battery power off of the smaller plug for the overhead lights. In the 16, it was the outside two wires. Ground is black, and battery power is yellow/green. Accessory power comes from the bigger plug, and I think it was blue/gray, the furthest right wire on the top row of 3.
What I did was first open the sunroof, then pull the overhead console and disconnect both plugs. Then, taking the wiring adapter for the dashcam, push the plug for the dashcam out through the front of headliner, working from inside of the void created by removing the overhead console. The feed EVERYTHING back through the headliner, pushing it towards the rear of the car from the location of the overhead console. Pull it out from above, through the open sunroof, and sit it on the roof of the car. There is a HUGE void between the headliner and the roof right in front of the sunroof, and you can access it from above really easily with the sunroof open. Then feed the wiring end back down through, giving you just enough wiring to mate up with wires for the two harnesses. Splice them in. Replace the overhead console. Tuck all of the spare wiring and any sensor modules/converters that you have into the void between the headliner and the roof, working from above with the sunroof open. Once everything is tucked in, make sure that everything works and that the sunroof and air deflector move unimpeded.
Easy Peasy.