Will this work with my factory wiring harness?

Yes. This unit connects directly to your OEM brake light circuit—no splicing or adapter harness needed. Plug it into the existing connector and you're done.

Do I need to remove the entire third brake light housing to install this?

You'll need to access the housing to swap out the old bulb assembly for this LED strip. The exact process depends on your vehicle's design—check your service manual for housing removal steps if you're not familiar with it.

What if this doesn't fit my housing after I open it up?

Test-fit before you commit. If the LED strip doesn't seat properly or the connector doesn't line up, stop and contact support with photos before forcing it—installation damage isn't covered.