Will this bolt straight to my existing mounting points?

Yes—this uses the factory brake light location and fastening points. No drilling, no custom brackets.

Do I need to disconnect the factory wiring harness?

You'll plug into the existing third brake light connector behind the panel. If your truck still has the OEM setup, the harness should match. Test fit before finalizing any connections.

What if the black housing doesn't match my truck's finish?

The black is molded into the housing, not painted. It won't chip or peel. If you want a different color, you can wet-sand and spray it with automotive paint—black takes any top coat well.