Model originally uploaded to Thingiverse at https://www.thingiverse.com/thing:5330075.

I needed a mounting bracket for a Tekonsha Primus IQ brake controller. The Primus IQ is an older style than the more common Tekonsha Prodigy brake controller series, and uses a slightly different mounting tab setup. Since there were no existing models available, I produced this quick sketch in FreeCAD to fit my needs.

It could be prettier, it could be fancier, but this is enough to hold your brake controller nice and secure.