2019+ Silverado/Sierra Headrest Mounts

This is a collection of parts I modeled out (just tinkercad) to mount emergency lights behind the headrests in the rear of a crew cab Sierra. I assume the double cab uses the same dimensions, but thats unconfirmed.

The center seat I modeled out a new housing for an older DL212 Star Mini Phantom dash light.
I don't expect anyone else will be using a DL212, but feel free to use the rest of the files as a base for whatever you may want. I modeled out the DL212 housing using the base as a "hole" in tinkercad and it slip fit together nicely.

The side headrest model I set up to use 2 ETL Orion 6 LED surface mount modules, and I modeled in a hole to put a zip tie through so that the whole assembly (headrests and the LEDs) can be hung from the cloths hanger hooks on the rear side windows in the event I want side-lighting (while parked only, of course, as the only time I'd even have these on while moving is while performing a recovery or flat-towing something a short distance.) The "right side" model has additional clearance to clear the power sliding window track if you're so equipped. This was an afterthought as I didn't think there would be interference. I went pretty extreme to go around it, possibly far more than necessary. I may need to come up with some sort of backflash shield for this so it doesn't just blast the cab.

I also included a blank that you could print and drill or melt whatever hole pattern you wanted, or remix it in tinkercad with holes to match your needs.

Update: I accidentally discovered that a very affordable set of lights I have also fit this mount, as STL has taken literally months to mail the other pair of lights I ordered.
Amazon.com: SEISSO 4-Pack 6 LED Sync Feature Amber Strobe Lights Vehicles Trucks Emergency Lights Kit 12V -24V Warning Hazard Flash Lights Bar Grill Grille Surface Mount Super Bright Waterproof, Amber/White : Automotive